J. VASANTHAKUMAR AND S.N. SINGH. A Study of Problems of Small Farmers with Regard to Farm Inputs. Indian Journal of Extension Education, India, v. 27, n. 1-2, p. 88–92, 1991. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/161276. Acesso em: 15 jul. 2026.