Supriyono, Supriyono. “STANDARISASI KURSUS: ANTARA KEBUTUHAN DAN KESULITAN MENETAPKAN BENCHMARK”.
JIV-Jurnal Ilmiah Visi
2, no. 2 (December 31, 2007): 52–59. Accessed April 10, 2025. https://journal.unj.ac.id/unj/index.php/jiv/article/view/7495.