pimnopphanshod, jirawat, and Techameth Pianchana. “The Development of Mathematic Learning Achievement on Single Variable Linear Inequality Using Scaffolding Learning Management of Grade 9 Students”. Mahachula Academic Journal 9, no. 3 (December 30, 2022): 441–453. Accessed April 19, 2024. https://so04.tci-thaijo.org/index.php/JMA/article/view/259977.