“A Research on the Levels of Agricultural Productivity and Their Regions in Ganga-Yamuna Doab: Examining Agricultural Productivity and Regional Disparities in the Ganga-Yamuna Doab”. Journal of Advances and Scholarly Researches in Allied Education, vol. 16, no. 2, Feb. 2019, pp. 183-7, https://ignited.in/index.php/jasrae/article/view/10093.