Development of an Ethno-RME-Based Electronic Student Worksheet (E-LKPD) on Geometric Transformation Using Yogyakarta Batik Motifs to Improve Mathematical Problem Solving Ability. james [Internet]. 2025 Dec. 3 [cited 2026 Jul. 21];1(01):20-34. Available from: https://journal.orbioninstitute.com/index.php/james/article/view/65