ชัยทร ธ, บุญมาเลิศ ว, ภู่ทอง บ. THE STRUCTURAL EQUATION MODELING OF ENHANCING THE LOYALTY OF WORKING-AGE CUSTOMERS WHO PURCHASE ORGANIC PRODUCTS IN PHUTTHAMONTHON DISTRICT, NAKHON PATHOM PROVINCE. Res Comm Soc Dev J [internet]. 2021 Aug. 26 [cited 2026 Sep. 17];15(3):56-69. available from: https://so04.tci-thaijo.org/index.php/NRRU/article/view/244937