CEDEÑO, K. Soil Quality of a Rice Organic Farm in Langkong, M’lang, Cotabato. Southeastern Philippines Journal of Research and Development, [S. l.], v. 24, n. 1, p. 35–53, 2019. DOI: 10.53899/spjrd.v24i1.11. Disponível em: https://journal.usep.edu.ph/index.php/Southeastern_Philippines_Journal/article/view/11. Acesso em: 23 oct. 2025.