“A Comparison of Yogurt and Probiotic Supplements Effects on the Hardness of Tooth Enamel: An In Vitro Study: Perbandingan Pengaruh Yogurt Dan Suplemen Probiotik Terhadap Kekerasan Enamel Gigi: Studi in Vitro”. Dentika: Dental Journal 25, no. 2 (December 12, 2022): 72–77. Accessed February 5, 2026. https://idjpcr.usu.ac.id/dentika/article/view/8575.