R. G. I. S. N. P. P. S. S S Rathore, R P S Shaktawat, “Effect of phosphorus and plant growth regulators on growth and yield of fenugreek (Trigonella foenum-graecum L.)”, J Spices Arom Crops, vol. 18, no. 1, pp. 33–36, Jun. 2009.