Hasan, M. ., S. H. . Khan, and K. . Md. Foysol. “Need of Introducing English Proficiency Course into Engineering Education in Bangladesh: A Case Study”. International Journal of Asian Social Science, vol. 2, no. 8, Aug. 2012, pp. 1261-8, https://archive.aessweb.com/index.php/5007/article/view/2305.