Peni, Natalia, Ludovicus Carvallo, and Melania Priska. 2020. “Problem Solving Learning Model By Integrating ARCS Motivation Strategies On Acid-Base Subjects: Model Pembelajaran Problem Solving Dengan Mengintegrasikan Strategi Motivasi ARCS Pada Materi Pokok Asam Basa”. Pedagogia : Jurnal Pendidikan 9 (2). https://doi.org/10.21070/pedagogia.v9i2.641.