Jahan, M Sarwar, D Alam, M Mostafzur Rahman, and MA Quaiyyum. “Isolation and Characterization of Lignin from Okra (Abelmoschus Esculentus) Fibre and Stick”. Bangladesh Journal of Scientific and Industrial Research 50, no. 4 (December 11, 2015): 257–262. Accessed July 18, 2024. https://banglajol.info/index.php/BJSIR/article/view/25834.