mohamed, M. B. Noor, et al. “Effect of Spacing on Growth and Increment of Hardwickia Binata Roxb. In Semi Arid Region of Rajasthan”. International Journal of Economic Plants, vol. 5, no. Aug, 3, Aug. 2018, pp. 127-30, https://ojs.pphouse.org/index.php/IJEP/article/view/4558.