Knežević, Nataša, Olivera Dolić, Marija Obradović, Željka Kojić, Aleksandra Đeri, Valentina Veselinović, and Slava Sukara. 2019. “The Degree of Tooth Color Change Using Different Concentrations of Carbamide Peroxide”. Scripta Medica 50 (4): 161-66. https://doi.org/10.5937/scriptamed50-23132.