A.G. Siyal, F.C. Oad, M.A. Samo, Zia-Ul-Hassan and N.L. Oad
Asian Journal of Plant Sciences 1 ( 1 ): 3 - 4 , 2002
N. Memon, Zia-ul-Hassan and F.C. Oad
Journal of Applied Sciences 1 ( 4 ): 563 - 574 , 2001