B.N. SINGH. Special Extension Block Programme of Bihar Agricultural College , Sabour. Indian Journal of Extension Education, India, v. 2, n. 1&2, p. 92–94, 1966. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/159661. Acesso em: 15 jul. 2026.