(Papitchaya Panjai) ป. ป., and (Angkana Onthanee) อ. อ. “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”. Journal of Education and Innovation, vol. 19, no. 4, Jan. 2018, pp. 157-71, https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/108438.