Mistiani W, Istiyono E, Syamsudin A, Ghazali NHM. Developing a Pancasila students’ character instrument: Proof of construct validity and estimation of construct reliability. REiD [Internet]. 2024 Oct. 12 [cited 2025 May 18];10(2):186-98. Available from: https://journal.uny.ac.id/index.php/reid/article/view/44920