ชำนาญนา พ., ฤกษ์พิไชย ค. and หมื่นหาญ ท. 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 (Jul. 2019), 43–53.