CHAI-AROON, T., เดชารัตนชาติ ว. and นาคขำ น. 2023. Evaluate the Effectiveness of The Foreign Language Capacity Development Project (Thai-Cambodia) for elementary school students in the Khlong Yai district of Trat Province and the Koh Kong Province of Cambodia . Journal of Education Studies, Chulalongkorn University. 51, 4 (Dec. 2023), EDUCU5104014. DOI:https://doi.org/10.14456/educu.2023.41.