Yanikoglu, Nuran, Zeynep Yesil Duymus, and Kadem Meral. “Colour Changes of Tooth-Coloured Materials in the Different Solutions”. Asian Journal of Chemistry 22, no. 8 (June 20, 2010): 6224–6230. Accessed July 4, 2024. https://asianpubs.org/index.php/ajchem/article/view/11806.