NASREEN, SILAGUFTA, MAHMOOD AHMAD KHAWAJA, and IFTIKHIAR A AwAN. ā€œPā€. Biological Sciences - PJSIR 38, no. 5-6 (June 19, 1995): 215ā€“219. Accessed November 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/2478.