Amjad Hameed, Salman Ahmad Malik, Fazli-Rabbi, Aysha Sharif, Nasir Ahmad, Wajahat Hussain, Hassan Akhtar Bokhari, Shafaqat Ali, Farwa Nurjis, Ahmad Mukhtar Khalid and Javed Anver Qureshi
Pakistan Journal of Biological Sciences 5 ( 8 ): 878 - 880 , 2002