Nuryati, Nuryati, et al. “PENGEMBANGAN MODEL PEMBELAJARAN PPKn ANTI KORUPSI BERBASIS LINGKUNGAN MELALUI COOPERATIVE LEARNING DI SMA SMK SWASTA KULON PROGO YOGYAKARTA”. Academy of Education Journal, vol. 8, no. 1, Jan. 2017, pp. 27-49, doi:10.47200/aoej.v8i1.333.