@book{75727,
	author = {Ahmed Youssry Elhawary and Ahmed Abbas , },
	title = {Effect of Ercr: YSGG 2.7 nm laser on debonding of CAD/CAM endocrowns / },
	publisher = {Ahmed Youssry Elhawary , },
	year = {2018},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}