RAVI SHANKAR KUMAR. A SOCIO-ECONOMIC ANALYSIS OF OLD AGE POPULATION BIHAR. International Journal of Multidisciplinary Research and Studies, [S. l.], v. 3, n. 03, p. 01–13, 2020. Disponível em: https://ijmras.com/index.php/ijmras/article/view/345. Acesso em: 9 may. 2024.