Dubey, D. N., Kulmi, G. S., & Jha, G. (2012). Relative productivity and economics of sole, mixed and intercropping systems of sorgbum (Sorghum bicolor) and grain legumes under dryland condition. The Indian Journal of Agricultural Sciences, 65(7). https://epubs.icar.org.in/index.php/IJAgS/article/view/18891