POSAWANG, R.; PROMKHET, W. A COMPARISON OF LEARNING ACHIEVEMENT BEFORE AND AFTER STUDYING THAI LANGUAGE ON FIGURATIVE LANGUAGE USING THE COOPERATIVE LEARNING PROCESS (GROUP INVESTIGATION: G.I.) COMBINED WITH CONCEPT MAPS FOR MATTHAYOMSUKSA 3 STUDENTS AT THUNGFON WITTAYAKARN SCHOOL, UDON THANI PROVINCE. Journal of Humanities, Social Sciences, and Arts, [S. l.], v. 8, n. 1, p. 140–152, 2026. Disponível em: https://so03.tci-thaijo.org/index.php/hsa/article/view/290506. Acesso em: 2 oct. 2026.