Wangkhahat, S.; Poungsuk, P. .; Intorrathed, S.; Hongmaneerat, K. Problem and Obstacle on Sufficiency Economy Philosophy (SEP) Application of People in Thonnalab Community, Bandung District, Udon Thani Province. J. Agr. Bio. Tech. & Educ. 2023, 1, 7-13.