OCTAVIA, Alfini. Diskolorasi eksternal pada gigi atlet renang remaja. Indonesian Journal of Paediatric Dentistry, [S.l.], v. 1, n. 2, p. 194-196, july 2018. ISSN 2615-7802. Available at: <http://jurnal.pdgi.or.id/index.php/ijpd/article/view/395>. Date accessed: 22 feb. 2020.