Ferryansyah, and Maharani Izzatin. “ANALYSIS OF STUDENTS’ UNDERSTANDING OF ALGEBRA CONCEPTS BASED ON APOS THEORY: A STUDY IN LINEAR ALGEBRA COURSES”. Jurnal Penalaran dan Riset Matematika 5, no. 1 (April 30, 2026): 20–31. Accessed July 26, 2026. https://journal.almeeraeducation.id/prisma/article/view/619.