PRANATA, N. Dental Calculus as The Unique Calcified Oral Ecosystem A Review Article. Oceana Biomedicina Journal, [S. l.], v. 2, n. 2, p. 52–65, 2019. DOI: 10.30649/obj.v2i2.28. Disponível em: https://ocean-biomedicina.hangtuah.ac.id/index.php/journal/article/view/32. Acesso em: 24 dec. 2025.