YOSAFAT ARDIAN KRISTIARTA; WAHYU SETYANINGRUM; MARSIGIT. Problem Solving Approach Based on Blended Learning on Trigonometric Comparison of Right Triangles on Mathematical Concept Understanding Ability. Journal for Lesson and Learning Studies, [S. l.], v. 6, n. 3, p. 516–526, 2023. DOI: 10.23887/jlls.v6i3.67275. Disponível em: https://ejournal.undiksha.ac.id/index.php/JLLS/article/view/67275. Acesso em: 18 may. 2024.