Sasiprapa, Walaiporn, Sukit Ratanariwong, Vinai Sarawat, Sopita Somkid, and Nareeluck Wannasai. 2011. “Using GUMCAS to Identify Site Specific Cassava (Manihot Esculenta Crantz) Cultivar and Planting Duration”. Thai Agricultural Research Journal 29 (2):147-60. https://doi.org/10.14456/thaidoa-agres.2011.22.