Suppayasan, P., Thandee, D., Sudsawasd, S. and Tinnakul, N. 2021. Driving Forces in the Implementation of Agricultural Extension Policy: A Case Study of Participating and Non-Participating Agriculturalists in a Complete Production Cycle of the Organic Rice Development and Promotion Project in the Central Region of Thailand. Ph.D. in Social Sciences Journal. 11, 2 (Aug. 2021), 480-492.