เข้มขัน วิไลวรรณ, and Kotchaphan Kemkuakoon. “An analysis of language use and conceptual presentation strategies in part-time reading books, Thai language learning subject group, Lower secondary education, according to the basic education core curriculum, 2008”. Journal of Humanities and Social Sciences Uttaradit Rajabhat University 11, no. 1 (June 30, 2024): 70–81. accessed September 14, 2026. https://so04.tci-thaijo.org/index.php/johuru/article/view/265777.