Choothong, W., Srisontisuk, S., & Yupas, Y. (2020). The Collaboration in Rice Developing Administration of the Local Administration Offices Located in the Upper-Central Provinces, Region 2. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, 15(1), 268–278. https://doi.org/10.14456//psruhss.2021.21