@book{80224,
	author = {Ola Gamal Hussein  and Eman Saad Elzanfaly , },
	title = {Analytical study of some pharmaceutical compounds containing heterocyclic rings / },
	publisher = {Ola Gamal Hussein  , },
	year = {2021},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}