Fairuz Chowdhury, and Fairuz Chowdhury. “Diversification and Portfolio Performance of the Pharmaceutical Sector of Bangladesh”. Global Journal of Management and Business Research 15, no. C9 (May 15, 2015): 43–50. Accessed May 5, 2024. https://journalofbusiness.org/index.php/GJMBR/article/view/1825.