Restati Siregar, N, S Wimbarti, and Kadir . “Mathematical Word Problem Solving in Students Elementary School: Is Schema-Based Instruction (SBI) or Cognitive Strategy Instruction (CSI) Used?”. KnE Social Sciences 3, no. 15 (March 31, 2019): 198–204. Accessed May 5, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/4367.