AND S. SRINIVAS, L.G.K. Naidu, K.M. Nair. Rubber-growing Areas of Kerala and Tamil Nadu: Soil Related Constraints to Rubber Productivity and Delineation of Soil Management Units. Journal of the Indian Society of Soil Science, India, v. 62, n. 1, 2014. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/41249. Acesso em: 6 jun. 2026.