ABRAHAM, THOMAS, et al. “Evaluation of Performance of Chickpea (Cicer Arietinum) and Mustard (Brassica Juncea) Intercropping System Vis-à-Vis Their Sole Crops As Influenced by Irrigation Regimes and Fertility Gradients *”. The Indian Journal of Agricultural Sciences, vol. 81, no. 8, Aug. 2011, https://epubs.icar.org.in/index.php/IJAgS/article/view/8456.