Widjiastuti, Ira. “Pin-Retain for Restoration of Widely Tooth Damaged”. Dental Journal (Majalah Kedokteran Gigi) 40, no. 2 (June 1, 2007): 98–100. Accessed October 10, 2025. https://e-journal.unair.ac.id/MKG/article/view/1062.