Terin, Prakash, et al. “Effect of Spacing and Cobalt Application Methods on Root Nodulation and Yield of Kabuli Chickpea (Cicer Kabulium L.) Cultivars”. International Journal of Economic Plants, vol. 9, no. Feb, 1, Feb. 2022, pp. 045-8, https://ojs.pphouse.org/index.php/IJEP/article/view/4711.