Kirana K. ORAL COLLAGEN AND AGING. Faculty of Medicine, Tadulako University, P-ISSN: 2407-8441 and e-ISSN 2502-0749 [Internet]. 2023May31 [cited 2025Sep.16];9(2):235-49. Available from: https://jurnal.fk.untad.ac.id/index.php/htj/article/view/193