Li, Xiaoling, and Li Zhongxuan. “Core Competency Oriented Problem-Solving Teaching ----Taking ‘Solving Application Problems With a System of Equations’ As an Example”. Pacific International Journal 7, no. 2 (April 20, 2024): 17–21. Accessed May 19, 2024. https://rclss.com/pij/article/view/555.