DAHAL, H. Factor analysis for soil test data: a methodological approach in environment friendly soil fertility management. Journal of Agriculture and Environment, [S. l.], v. 8, p. 8–19, 2007. DOI: 10.3126/aej.v8i0.722. Disponível em: https://nepjol.info/index.php/AEJ/article/view/722. Acesso em: 21 nov. 2024.