@book{211321,
	author = {TIM Matrix Media Literata and Christiani S. Napitupulu },
	title = {Seri Evaluasi Si Teman Evaluasi Terpadu Mandiri dan Rekreasi Matematika SMP },
	publisher = {Grasindo},
	year = {2006},
	address = {Jakarta},
	edition = {1}
}