Lia Rezika, Enny Susilawati. Analysis of the Ability to Understand Mathematical Concepts of Grade X Students on Logarithm Material. SJIP [Internet]. 2025 Dec. 31 [cited 2026 Oct. 25];11(2). Available from: https://www.ejournal.stkipbudidaya.ac.id/index.php/serunai/article/view/1900