Chaisingthong K, Singyoocharoen W. THE STUDY OF STRUGGLES OF CHINESE PHONETICS ALPHABET OF STUDENTS AT RAJAMANGALA UNIVERSITY OF TECHNOLOGY SUVARNABHUMI, USING QUALITY CONTROL TOOLS. jlarus [internet]. 2022 Dec. 23 [cited 2026 Oct. 14];4(3):545-59. available from: https://so03.tci-thaijo.org/index.php/art/article/view/261691