Suresh Kumar, J., S. J. More, V. Ravi, G. Byju, and J. George. “Leaf Area Estimation in Yam Bean ( Pachyrrhizus Erosus L.) Using Linear Measurement of Leaf Parameters”. JOURNAL OF ROOT CROPS, vol. 42, no. 2, May 2017, pp. 86-89, https://ojs338.isrc.in/index.php/jrc/article/view/422.