Literature Study: Cooperative Learning Model Attention, Relevance, Confidence, and Satisfaction (ARCS) According to John M. Keller : Studi Literatur: Model Pembelajaran Kooperatif Attention, Relevance, Confidence, Satisfaction (ARCS) Menurut John M. Keller. acopen. 2022;6:10.21070/acopen.6.2022.1512. doi:10.21070/acopen.6.2022.1512