(Papitchaya Panjai) ปป, (Angkana Onthanee) ออ. A DEVELOPMENT OF COMPUTER COURSEWARE USING K-W-D-L TECHNIQUE TO ENHANCE MATHEMATICS PROBLEM SOLVING ABILITY ON RATIOS AND PERCENTAGES FOR GRADE VIII STUDENTS. JEI [Internet]. 2018 Jan. 5 [cited 2024 May 4];19(4):157-71. Available from: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/108438