Yan-ting Huang และผู้แต่งคนอื่นๆ. (2018) Roles of actors in the development of organic farming in Baan Non-yang, Amphoe Kud-chum, Yasothon Province. Chulalongkorn University:ม.ป.ท.Yan-ting Huang และผู้แต่งคนอื่นๆ. 2018. Roles of actors in the development of organic farming in Baan Non-yang, Amphoe Kud-chum, Yasothon Province. ม.ป.ท.:Chulalongkorn University;Yan-ting Huang และผู้แต่งคนอื่นๆ. Roles of actors in the development of organic farming in Baan Non-yang, Amphoe Kud-chum, Yasothon Province. ม.ป.ท.:Chulalongkorn University, 2018. Print.