Suppayasan, P.; Thandee, D.; Sudsawasd, S.; Tinnakul, N. riving orces in the mplementation of gricultural xtension olicy: ase tudy of articipating and on-articipating griculturalists in a omplete roduction ycle of the rganic ice evelopment and romotion roject in the entral egion of hailand. Ph.D.in Soc. Sci. J. 2021, 11, 480-492.