Kurnia, Heri. “PENGARUH KEAKTIFAN BERORGANISASI TERHADAP INDEKS PRESTASI KUMULATIF MAHASISWA UNIVERSITASCOKROAMINOTO YOGYAKARTA”. Academy of Education Journal 5, no. 2 (July 1, 2014). Accessed November 24, 2024. https://jurnal.ucy.ac.id/index.php/fkip/article/view/120.