Apurva Pathak, Hemwati Nandan, Rakshit Sthapak, Mangleshwar Dubey, and Sonia Sharma. 2019. “Comparative Assessment of Hydrofluoric Acid and Sandblasting Etching Technique on Porcelain Crowns”. Asian Pacific Journal of Health Sciences 6 (2):175-81. https://doi.org/10.21276/apjhs.2019.6.2.25.