VIRAKORNPHANICH, P. Effect of Clay Type on Humus Formation from Alfalfa Meal . Thai Agricultural Research Journal, [S. l.], v. 8, n. 1, p. 9–16, 1990. Disponível em: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/242401. Acesso em: 1 oct. 2026.