มุมมาลา น, เสาแก้ว ส. STUDY OF THE SITUATION ON LOCAL ORDINANCE FOR AUTOMATIC WATER VENDING MACHINE QUALITY PROVISION IN PHETCHABUN PROVINCE. TFDJ [Internet]. 2022 Oct. 11 [cited 2024 May 5];25(3):64-7. Available from: https://he01.tci-thaijo.org/index.php/fdajournal/article/view/259247