Amonpon, W., Anakad, T., Luanmanee, S. ., & Paisancharoen, K. . (2013). Optimal Crop Nutrient Management for Cassava Production on Sandy Soil Sattahip Series. Thai Agricultural Research Journal, 31(2), 180–193. https://doi.org/10.14456/thaidoa-agres.2013.17