Somkid, S. , Thongros, M., chansrakoo, W., Phompanja, P. , Kumsap, K. , Lersuwanaro, D. and Karnnasuta, K. 2021. System development of organic cassava starch supply chain of Ubon Ratchathani farmers . Thai Agricultural Research Journal. 39, 1 (Feb. 2021). DOI:https://doi.org/10.14456/thaidoa-agres.2021.7.