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Asian Journal of Plant Sciences 2 ( 15 ): 1107 - 1111 , 2003
Taous Khan, Waqar Ahmad, Shumaila Bashir, Zafar Iqbal, Bashir Ahmad Manzoor Ahmad, Nisarullah, Muhammad Arfan and Farzana Shaheen
Pakistan Journal of Biological Sciences 6 ( 13 ): 1142 - 1144 , 2003