Ullah, Khitab, and Mohammad Jamal khan. “Effect of Phosphorus and Sulfur on the Yield and Nutrients Uptake of Wheat”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 37, no. 2 (February 3, 2018): 52–71. Accessed May 7, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8179.