Ambarita DU, Marbun YMR, Purba YO. Pengaruh Pendekatan Pembelajaran Contextual Teaching And Learning (CTL) Terhadap Kemampuan Berpikir Kritis Matematis Siswa Pada Materi Trigonometri Kelas X . PIJAR [Internet]. 2025 Dec. 31 [cited 2026 Apr. 17];4(1):363-74. Available from: https://putrapublisher.org/ojs/index.php/pijar/article/view/1263