Muhammad Iqbal, Muhammad Ali Chang, Muhammad Zafar Iqbal, Mahmood-ul- Hassan, Abdul Nasir and Noor-ul- Islam
Journal of Agronomy 2 ( 3 ): 160 - 168 , 2003
Muhammad Iqbal, Muhammad Zaffar Iqbal, Muhammad Ali Chang and Khezir Hayat
Pakistan Journal of Biological Sciences 6 ( 22 ): 1883 - 1887 , 2003
Muhammad Iqbal, Muhammad Ali Chang, Muhammad Zafar Iqbal and Muhammad -ul-Hassan
Pakistan Journal of Biological Sciences 6 ( 21 ): 1845 - 1848 , 2003