Thammanam O, Chotpradit S, Thongsorn P. DEVELOPMENT OF CHINESE MANDARIN WORD SPELLING ABILITY ON COMPLICATED WORDS USING CHINESE PINYIN SPELLING EXERCISES FOR MATHAYOMSUKSA 4 STUDENTS. J.TNSU [internet]. 2019 May 1 [cited 2026 Sep. 18];11(2):321-3. available from: https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244945