Vikram Singh, and Sangya Tripathi. “Preservation and Promotion of Indigenous Endangered Languages of Tribes: Role of Academic Institutions.”. Thematics Journal of Geography 8, no. 12 (April 2, 2020): 1373-1380. Accessed September 22, 2026. http://www.thinkindiaquarterly.org/index.php/tjg/article/view/19738.