Patlapa Piemsuk, Saiphin Siharak. 2020. “Developing the Ability to Solve Mathematical Problems by Learning Management With the SSCS Model Together With Drawing the Bar Model of Primary 3 (Grade 3) Students”. International Journal of Advanced Science and Technology 29 (4s), 3509-15. http://sersc.org/journals/index.php/IJAST/article/view/23496.