Boonruang, Rungrat. “THE DEVELOPMENT OF A SUPPLEMENTARY READING BOOK SERIES, ‘LEARNING POEMS AND TEACHING VOWELS: WE LOVE PHAYAO,’ IN CONJUNCTION WITH THE FOUR BLOCKS LEARNING TECHNIQUE, AIMS TO IMPROVE READING COMPREHENSION ACHIEVEMENT FOR FIRST-GRADE STUDENTS”. Journal of Educational Review Faculty of Education in MCU 13, no. 2 (September 1, 2026): 43–55. accessed September 1, 2026. https://so02.tci-thaijo.org/index.php/EDMCU/article/view/287078.