C. A. V. Corsiga, R. B. Badayos, P. B. Sanchez, E. S. Paterno, and P. C. Sta. Cruz, “Soil classification, suitability assessment, and contraints analyses of major soil series grown to sugarcane in Negros Occidental, Philippines”, Ann. Trop. Res, vol. 40, no. 1, pp. 53–70, May 2018.