@article {221962,
	title = {Survey of family-size biogas units and agricultural wastes in Giza Governorate},
	year = {2019},
	month = {06/21},
	pages = {14},
	institution = {The Science, Technology \& Innovation Funding Authority (STDF)},
	address = {Cairo},
	issn = {10.13140/RG.2.2.23047.06563},
	author = {M. Samer and E. M. Abdelsalam}
}
