@book{159089,
	author = {Muhd. Ismail Ahmad, },
	title = {Sains angkasa lepas},
	publisher = {Booktrade , },
	year = {1998},
	series = {Siri sains dan teknologi},
	address = {Petaling Jaya, Selangor : },
	edition = {Siti Zawiyah Zakaria}
}