วิริยะสืบพงศ์ เ. (2015). TO DEVELOP CULTURAL BELIEF OF SELF-SUFFICIENCY BY USING DELPHI TECHNIQUE. RMUTT Global Business and Economics Review, 10(1), 91–106. Retrieved from https://so03.tci-thaijo.org/index.php/RMUTT-Gber/article/view/242034