G. S. S. KHATTAK; M. ASHRAF; ROSHAN ZAMIR; I. SAEED(Pakistan Journal of Botany, Botanical Garden, University of Karachi, Karachi, Pakistan, 2007-02-13)
MUHAMMAD TARIQ; SOHAIL HAMEED; MALIK, KAUSER A.; FAUZIA Y. HAFEEZ(Pakistan Journal of Botany, Botanical Garden, University of Karachi, Karachi, Pakistan, 2007-03-02)