Muhammad Sibtain, Iftikhar A. Khan, M.B. Illyas and S.S. Alam
Asian Journal of Plant Sciences 1 ( 2 ): 193 - 194 , 2002
Yousaf Ali, M. Yasin Ashraf, Z. Aslam and S.S. Alam
Plant Pathology Journal 1 ( 1 ): 25 - 26 , 2002