tongpool J, Supat P, Wisaprom M, Sihawong J. Developing Capability of Thai Diphthong Reading with Active learning: GWM for Grade 4 Students, Khumkhamwittaya School, Sisaket Area Office 1. J Roi Et [internet]. 2020 Apr. 27 [cited 2026 Sep. 12];14(1):3-14. available from: https://so03.tci-thaijo.org/index.php/reru/article/view/204162