SINGH, N. K.; SINGH, B. P.; YADAVA, K.; SINGH, B. P. A study of socio demographic condition of North eastern Bihar. Recent Research in Science and Technology, [S. l.], v. 5, n. 4, 2013. Disponível em: https://www.updatepublishing.com/journal/index.php/rrst/article/view/1040. Acesso em: 23 sep. 2025.