Ahmal, A. et al. 2022. Values of Character Education in the Struggle of Sultan Syarif Kasim II in Learning History Through a Scientific Approach in Era 4.0. AL-ISHLAH: Jurnal Pendidikan. 14, 3 (Jul. 2022), 3159–3172. DOI:https://doi.org/10.35445/alishlah.v14i3.1871.