Restati Siregar N, Wimbarti S, . K. Mathematical Word Problem Solving in Students Elementary School: Is Schema-Based Instruction (SBI) or Cognitive Strategy Instruction (CSI) Used?. KSS [Internet]. 2019Mar.31 [cited 2024May5];3(15):198–204. Available from: https://knepublishing.com/index.php/KnE-Social/article/view/4367