พลรักษา ร., & ทวีวัฒน์ พ. (2018). A FEASIBILITY STUDY OF INVESTMENT IN RICE SEED FACTORY SUWANNAPHUM DISTRICT ROI ET PROVINCE. Journal of Management Science Chiangrai Rajabhat University, 11(1), 68–80. Retrieved from https://so03.tci-thaijo.org/index.php/jmscrru/article/view/122719