@book{5038,
	author = {Booch, Grady},
	title = {The Unified Modeling Language User Guide},
	publisher = {Pearson Education Publisher},
	address = {New Dehli},
	url = {https://libgen.is/book/index.php?md5=D2D33655CC6D772D4F903D3214A45D2F}
}