Sen, B. K., C. A. Taib, M. F. Hassan, B. K. Sen, C. A. bin Taib, and M. F. Hassan. “LIBRARY AND INFORMATION SCIENCE LITERATURE AND LOTKA’ S LAW”. Malaysian Journal of Library and Information Science, vol. 1, no. 2, Mar. 2017, pp. 89-93, https://ajba.um.edu.my/index.php/MJLIS/article/view/1701.