@book{182331,
	author = {PURWANTA, Drs. Wiji., M.Pd and Aji Kusuma J.H, M.Si},
	title = {OSN Ekonomi & Olimpiade Pasar Modal Nasional SMA/MA},
	publisher = {Yrama Widya},
	year = {2015},
	address = {Bandung}
}