Jompuk N, Lapanachokdee W, Chantra C. A CONSTRUCTION OF MATHEMATICS DIAGNOSTIC TEST ON SUBSTANCE 4 ALGEBRA FOR PRATHOMSUKSA 6 STUDENTS UNDER LOPBURI PRIMARY EDUCATION SERVICE AREA OFFICE 2. RJPJ [Internet]. 2018 Dec. 25 [cited 2024 Apr. 20];12(27):170-82. Available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/162595