Sukirno, Sukirno. “Strategi Pustakawan Sukses Uji Sertifikasi”. Buletin Perpustakaan, no. 57 (November 16, 2017): 1–10. Accessed May 5, 2024. https://jurnal.uii.ac.id/Buletin-Perpustakaan/article/view/9093.