Ullah, K., & khan, M. J. (2018). Effect of Phosphorus and Sulfur on the Yield and Nutrients Uptake of Wheat. International Journal of Sciences: Basic and Applied Research (IJSBAR), 37(2), 52–71. Retrieved from https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8179