D. Saavedra-Mora, V. Murcia-Torrejano, L. Machado-Cuellar, J. Sánchez-Cerquera, L. F. Estrada-Quintero, and C. M. Ordoñez-Espinosa, “Soil physical and chemical properties and their relationship with productive units in Campoalegre, Huila State, Colombia”, Bioagro, vol. 31, no. 2, pp. 151-158, Apr. 2020.