Haq, Zia ul, & Zafar Ullah, Saeed Ahmed, Muhammad Raza Siddiqui, Saduddin. " 46. Nutritional status of apple orchards soils in district Qilla Saifullah (Balochistan)." Pure and Applied Biology (PAB) [Online], 7.2 (0): 797-809. Web. 16 Jul. 2019