@book{1223,
	author = {"Barkakati, Nabajyoti"},
	title = {Object oriented programming in C++},
	publisher = {Sams Publishing},
	address = {New Dehli},
	edition = {3rd},
	url = {https://libgen.is/book/index.php?md5=B9EED33028DFD3FE099440CAAC05CCAD}
}