Thammanam, O., Chotpradit, S. and Thongsorn, P. (2019) “DEVELOPMENT OF CHINESE MANDARIN WORD SPELLING ABILITY ON COMPLICATED WORDS USING CHINESE PINYIN SPELLING EXERCISES FOR MATHAYOMSUKSA 4 STUDENTS”, Academic Journal of Thailand National Sports University. Chonburi, Thailand, 11(2), pp. 321–331. available at: https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244945 (accessed: 18 September 2026).