Operative Dentistry Lecture 3rd Year (new). 1 April 2020 https://drive.google.com/file/d/1z0tEtINoYxT1Oerp1I6FE9e49h7abIbe/view?ts=5e82e7b8&fbclid=IwAR20uxaSEw5X85owmVRgx2xTlBxi9qjov-8TK5iiyqYCTQCvUFOOnTGE5iU
