ชัยทร ธ., บุญมาเลิศ ว., & ภู่ทอง บ. (2021). THE STRUCTURAL EQUATION MODELING OF ENHANCING THE LOYALTY OF WORKING-AGE CUSTOMERS WHO PURCHASE ORGANIC PRODUCTS IN PHUTTHAMONTHON DISTRICT, NAKHON PATHOM PROVINCE. Research Community and Social Development Journal, 15(3), 56–69. https://doi.org/10.14456/nrru-rdi.2021.45