| 1 | 1.Ritter, Andre V. Sturdevant's art & science of operative dentistry-e-book. Elsevier Health Sciences, 2017. | 
			
				| 2 | 2.Vesna Miletic, Dental Composite Materials for Direct Restorations, Springer International Publishing, 2018.  | 
			
				| 3 | 3. Garg N, Garg A. Textbook of Operative Dentistry, Jaypee Brothers, 2015. |