PHILIP, A.; ABRAHAM, J. Soil organic matter characterization in rubber based systems in central Kerala - A spectroscopic approach. Journal of Plantation Crops, [S. l.], v. 47, n. 3, p. 132–139, 2020. DOI: 10.25081/jpc.2019.v47.i3.6040. Disponível em: https://updatepublishing.com/journal/index.php/JPC/article/view/6040. Acesso em: 20 apr. 2024.