DR. REVATHI K SIVADAS, MR. JOVIN P JOHN. Returns to Scale and Elasticity of Natural Rubber Production in Kerala, India. International Journal of Modern Agriculture, [S. l.], v. 10, n. 2, p. 3501 - 3507, 2021. Disponível em: http://modern-journals.com/index.php/ijma/article/view/1197. Acesso em: 25 apr. 2024.