Yuanita, T., Zubaidah, N., & A R, M. I. (2020). Enamel Hardness Differences After Topical Application Of Theobromine Gel And Casein Phosphopeptide-Amorphous Calcium Phosphate. Conservative Dentistry Journal, 10(1), 5–8. https://doi.org/10.20473/cdj.v10i1.2020.5-8