Akhtar, Nasima, M Abdul Matin Sarker, Hasina Akhter, and M Katrun Nada. “/I>”;. Bangladesh Journal of Scientific and Industrial Research 44, no. 1 (June 25, 2009): 125–130. Accessed June 30, 2024. https://banglajol.info/index.php/BJSIR/article/view/2721.