Ullah, Shifa, Rehana Bibi, Muhammad Amjad Bashir, Muhammad Ibrahim, Shafqat Saeed, and Muhammad Arshad Hussain. 2014. “Population Dynamics of Aphid and Its Bio-Control Agents in Wheat Crop”. Pakistan Journal of Nutrition 13 (3): 146–150. https://doi.org/10.3923/pjn.2014.146.150.