@book{42188,
	author = {Malaysia. Kementerian Pelajaran and Kementerian Pelajaran Malaysia,  and Malaysia. Kementerian Pelajaran },
	title = {Panduan mengajar sains darjah satu : },
	publisher = {Dewan Bahasa dan Pustaka , },
	year = {1973},
	address = {Kuala Lumpur : }
}