Habibi, H., and G. H. Talaei. “Effect of Biological Phosphate and Chemical Phosphorus Fertilizer on Yield and Yield Components of Ajowan (Carum Copticum) Medicinal Plant”. Agricultural Advances 3, no. 4 (April 28, 2014): 88-94. Accessed July 22, 2024. http://sjournals.com/index.php/aa/article/view/718.