Kristanto, Billy. “Calvin Dan Potensi Pemikirannya Bagi Ibadah Kristen”. Veritas: Jurnal Teologi dan Pelayanan 19, no. 2 (November 1, 2020): 119-133. Accessed January 18, 2021. https://ojs.seabs.ac.id/index.php/Veritas/article/view/353.