LEUANG V, Kanorth P. A Study on Mathematics Learning Achievement in Systems of Linear Equations with Two Variables Using the Brainstorming Technique for Third-Year Secondary School Students at the Demonstration Secondary School of Savannakhet Teacher Training College. sujournal [Internet]. 2025 Jul. 22 [cited 2026 Jan. 17];11(03):40-5. Available from: http://www.su-journal.com/index.php/su/article/view/999