Hardhi TR, Sudrajat A. THE REINFORCEMENT OF THE CHARACTER VALUES IN THE HISTORY SUBJECT AT SMA NEGERI 1 KOTA YOGYAKARTA. ISTORIA [Internet]. 2018 Dec. 5 [cited 2025 May 10];14(2). Available from: https://journal.uny.ac.id/index.php/istoria/article/view/22251