Hartutik (2024) “Strengthening P3 Knowledge with PBL Method in Teacher Professional Education (PPG) at Elementary School Level”, PROCEEDINGS International Conference on Catholic Religious Education and Philosophy, 1(2), pp. 44–53. Available at: https://iccrep.stpdianmandala.ac.id/index.php/ICCREP/article/view/4 (Accessed: 24 April 2025).