Ritruechai A, Pichitpatja P. Enhancing Entrepreneur Perception of Tobacco Products Information in the Operational Areas of the Chiang Mai Excise Office, Fang Branch. jomld [internet]. 2024 Nov. 30 [cited 2026 Oct. 8];9(11):607-21. available from: https://so06.tci-thaijo.org/index.php/jomld/article/view/274296