@book{64169,
	author = {Abu Dunya, Muhammad Hasan, },
	title = {Umar bin Al-Khayyam},
	publisher = {Darulfikir , },
	year = {[2003]},
	series = {Siri ilmuan Islam},
	address = {Kuala Lumpur : },
	note = {siri 12}
}