Tanveer, A., S. Ahmad, A. Hussain, and R. Ahmad. “Nutrient Uptake by Wheat and Weed Under Different Fertilizer Application Methods and Competition Periods”. Journal of Agricultural and Marine Sciences [JAMS], vol. 3, no. 1, Jan. 1998, pp. 47-54, https://journals.squ.edu.om/index.php/jams/article/view/519.