Yuan F, Khaowbanpaew K. Learning Chinese Phonetics System online by Using “echo method”: A Case Study of Mae Fah Luang University. JSINO [internet]. 2023 Jan. 10 [cited 2026 Apr. 21];17(1):22-33. available from: https://so16.tci-thaijo.org/index.php/JSINO/article/view/3003