Singh, Guriqbal, and H. K. Virk. “Effect of Integrated Weed Management Practices on Weed Growth and Productivity of Pigeonpea (Cajanus Cajan)”. International Journal of Bio-Resource and Stress Management, vol. 9, no. Jun, 3, June 2018, pp. 445-50, https://www.ojs.pphouse.org/index.php/IJBSM/article/view/3727.