ชำนาญนา พิศิษฐ์, ฤกษ์พิไชย คัทลียา, and หมื่นหาญ ทิพย์สุดา. 2019. “CAUSAL FACTOR MODEL THAT INFLUENCE ATTITUDE OF THE RETAIL MARKET: FARMER GROUPS USERS PUMP OF GROUNDWATER SOLAR ENERGY AT AMPER WANG THONG, PITSANULOK PROVINCE”. Journal of Energy and Environment Technology of Graduate School Siam Technology College 6 (1):43-53. https://ph01.tci-thaijo.org/index.php/JEET/article/view/197967.