Hardhi, Titan Rohkmutiana, and Ajat Sudrajat. “THE REINFORCEMENT OF THE CHARACTER VALUES IN THE HISTORY SUBJECT AT SMA NEGERI 1 KOTA YOGYAKARTA”. ISTORIA : Jurnal Pendidikan Dan Ilmu Sejarah, vol. 14, no. 2, Dec. 2018, doi:10.21831/istoria.v14i2.22251.