Sarakhan P, Kankhunthod N, Hokpanna N. Developing a Phonics-Based Learning Model Combined with Colored Letters to Enhance Reading and Spelling Skills According to Standard Spelling Rules for Fourth-Grade Elementary School Students. JISSD [internet]. 2026 Aug. 27 [cited 2026 Sep. 3];6(2):132-40. available from: https://so15.tci-thaijo.org/index.php/JISSD/article/view/4114