The primary aim of the research is to locate the attitudes of Bangladeshi students towards switching language from their mother tongue to a second language, i.e. - Bengali to English in their daily communication. This subject matter of Bengali-English code-switching has been the center of some researches in Bangladesh quite recently; therefore, researches in this field are in the development stage and are highly relevant. The study investigated some Bengali-speaking students of higher educational institutions of Bangladesh. The results have revealed that the attitudes of students towards Bengali-English code switching were positive and constructive in general. It is demonstrated that code-switching facilitates second language acquisition in the educational spaces. The research also found out that this new style of language is considered as a threat to the mother tongue as well. It suggested that speakers should learn or be taught to use both languages correctly. Finally, it provided some recommendations for the students to facilitate the learning of Bengali and English languages properly.

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4. The myth of the discreteness of linguistic systems. In &. P.L. Milroy, One speaker, two languages: Cross disciplinary perspectives on code-switching (pp. 68-89). New York: Cambridge University Press.

5. Sovon Chakraborty, Md. Obaidur Rahman F.M. Mehedi, "Sentiment Analysis on Twitter Tweets about COVID-19 vaccines Using NLP and Supervised KNN Classification Algorithm "  Indonesian Journal of Electronical Engineering and Computer Science. Vol. 23, No. 1, July 2021, pp. 463~470 ISSN: 2502-4752, DOI: 10.11591/ijeecs.v23.i1.pp463-470

6. Md. Obaidur Rahaman, Mohammod Abul Kashem, SC, F.M, S.M, F.K Internet of things based electrocardiogram monitoring system using machine learning algorithm, Article Published in International Journal of Advanced Computer Science and Applications(IJACSA) August, 2022.)

7. Muhammad Golam Kibria Md. Mamunur Rashid, Md. Obaidur Rahaman ,Al-Akhir Nayan, Sabrina Afrin, IoT based Smart Water Quality Prediction for Biofloc Aquaculture,IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 12, No. 6, 2021.

8. Obaidur Rahman, Mohammod Abul Kashem, Al-Akhir Nayan, Most. Fahmida, Fazly Rabbi, Marzia Ahmed, Mohammad Asaduzzaman “Internet of Things (IoT) Based ECG System for Rural Health Care”Article Published in International Journal of Advanced Computer Science and Applications(IJACSA), Volume 12 Issue 6, 2021.

9. Mohammod Obaidur Rahaman, Mohammod Abul Kashem and Mohammad Asaduzzaman Chowdhury. “ Analysis of Immunity System for Survival of COVID-19” Volume 2 - Issue 4, Mod Appl Pharm Pharmacol. 2(4). MAPP.000544.2021. DOI: 10.31031/MAPP.2021.02.000544. 

10. Al-Akhir Nayan; Muhammad Golam Kibria; Md. Obaidur Rahman; Joyeta Saha, “  River Water Quality Analysis and Prediction Using GBM” 2020 2nd International Conference on Advanced Information and Communication Technology (ICAICT), 2020, pp. 219-224, doi:10.1109/ICAICT51780.2020.9333492. ISBN:978-1-6654-2240-6. 

11. Marzia Ahmed, Mr. Obaidur Rahaman, Mostafijur Rahman and M. Abul Kashem “Analyzing the Quality of Water and Predicting the Suitability for Fish Farming in the Context of Bangladesh based on IoT” International Conference on Sustainable Technologies for Industry 4.0 (STI 2019) at Purbachal American City, Rupgonj, Bangladeh. [Scopus] 

12. Mohammod Obaidur Rahaman, Mohammod Abul Kashem “Cyber Physical System for Healthcare” International Journal of Advanced Research (IJAR), United Kingdom. November 2018. DOI URL: http://dx.doi.org/10.21474/IJAR01/7968,ISSN: 2320-5407 Int. J. Adv. Res. 6(10), 36-46.

13. Md. Obaidur Rahaman “Data and Information Security: A Modern Cryptographic Algorithm” International Journal of Advanced Research (IJAR), United Kingdom. October 2017. DOI URL: http://dx.doi.org/10.21474/IJAR01/5666, ISSN: 2320-5407 Int. J. Adv. Res. 5(10), 1508-1515

14. Md. Obaidur Rahaman, “Data and Information Security by using Elliptic Curve Cryptography” International Journal of Lambert Academic Publishing, July 2017.  ISBN(978-3-659-47487-3),P-ID(159172),Germany. https://www.morebooks.de/store/gb/book/1/isbn/978-3-659-47487-3,

15. “Data and Information Security in Modern World by using Elliptic Curve Cryptography” International Journal of Science and Academic Publishing, June 2017. p-ISSN: 2163-1484, e-ISSN: 2163-1492 2017; Vol 7 issue 2: page 29-44, USA.

16. Md. Obaidur Rahaman “Data and Information Security in Modern World” International Journal of Science and Academic Publishing, April 2017. p-ISSN: 2163-1484, e-ISSN: 2163-1492 2017; Vol 7 issue 1: page 12-21, USA.

17. Md. Obaidur Rahaman “Information Security: A Modern Cryptosystem of Symmetric and Asymmetric Key for Cyber Physical System” Journal of Applied Computer Science and Technology, Computer Engineering Division, IEB. http://www.iebbd.org/jcse/, Journal 2, Page no. 50-56.

18. Md. Obaidur Rahaman “Information security: A Modern cryptosystem of a public and a secret key“Multidisciplinary Journal of European University of Bangladesh. ISSN 2413-2632, Volume: 3, No: 3, January – June, 2018

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