Dr. Sanjit Kumar Sahoo,Dr. Prabu Mahin Syed Ismail,Dr. Syed Mueen Ahmed,Dr. Pawan Patel,Dr. Kamal Moolchandani ,Dr. Siddiq Ahmed. “An in Vitro Assessment of the Surface Hardness of Various Esthetic Restorative Materials”. Annals of the Romanian Society for Cell Biology (April 25, 2021): 10239–10244. Accessed April 19, 2024. https://annalsofrscb.ro/index.php/journal/article/view/3782.