@unpublished {57590,
	title = {فشل السوق وتدخل الدولة},
	year = {2010},
	attachments = {https://scholar.cu.edu.eg/sites/default/files/mmyoussif/files/fshl_lswq_wtdkhl_ldwl.doc},
	author = {"Mohammed Mahmoud Youssif"}
}
