Effendi, M. Chair, Yuli Nugraeni, and Rizki Widya Pratiwi. “The Effect of Soda Immersion on Nano Hybrid Composite Resin Discoloration”. Dental Journal (Majalah Kedokteran Gigi) 47, no. 1 (March 1, 2014): 37–40. Accessed December 3, 2025. https://e-journal.unair.ac.id/MKG/article/view/748.