Pengaruh Model Pembelajaran Problem Based Learning terhadap Hasil Belajar Konsentrasi Keahlian TKJT Kelas XI SMK N 2 Bitung. jemtech. Published online June 3, 2024:66 70. Accessed December 19, 2025. https://ejurnal.unima.ac.id/index.php/jemtec/article/view/9439