Panjaitan, M. Azhari, and Dadang Juandi. “Analysis of Problems in Learning Mathematics Based on Difficulties, Errors, and Misconceptions in the Material of Equations and Inequality Absolute Values of One Variable: Systematic Literature Review”. KnE Social Sciences 9, no. 13 (April 26, 2024): 316–324. Accessed May 19, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/15932.