@book{212449,
	author = {A. Ari Dartoyo, Dewi Susiloningtyas, Ikzan Pambudi},
	title = {Ensiklopedia Sains dan TEknologi Jilid 7 },
	publisher = {PT Lentera Abdi },
	year = {2007},
	address = {Jakarta},
	edition = {1}
}