Mukherjee, M., and N. Chatterjee. “A Comparative Study on Intelligence of First Generation Learners and Non First Generation Learners from Lower Socio Economic Class in Upper Primary Level”. The International Journal of Humanities & Social Studies, vol. 4, no. 8, Aug. 2016, https://internationaljournalcorner.com/index.php/theijhss/article/view/126878.