Mandal, C., Bhattacharyya, T., Venugopalan, M. V., Tiwary, P., & Pal, D. K. (2015). Agro-Ecological Sub-region: A wheel of technology transfer for crop planning. Indian Farming, 64(2). https://epubs.icar.org.in/index.php/IndFarm/article/view/49896