Promwatcharanon K, Suwanarak K. Exploring Cultural Diversity Portrayed in ELT Textbooks for Public Secondary Schools in Chiang Mai, Thailand. rEFLections [internet]. 2025 Aug. 20 [cited 2026 Mar. 6];32(2):1017-46. available from: https://so05.tci-thaijo.org/index.php/reflections/article/view/282997