@book{144410,
	author = {Nurulhuda Ismail, },
	title = {Bumi dan alam semesta},
	publisher = {Mikamas , },
	year = {1998},
	series = {Siri sumber sains},
	address = {Petaling Jaya, Selangor : },
	note = {Mengandungi soalan.}
}