J.P. SHARMA AND AVANISH KUMAR SINGH. Study of Biogas Plants in Rudrapur Block of Nainital District. Indian Journal of Extension Education, India, v. 36, n. 3-4, p. 141–147, 2024. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/161464. Acesso em: 25 jun. 2026.