@book{131614,
	author = {KUMON, TORU, 1914-1995},
	title = {ESTUDO GOSTOSO DE MATEMATICA: O SEGREDO DO METODO KUMON},
	publisher = {KUMON INSTITUTO DE EDUCACAO},
	year = {1997},
	address = {SAO PAULO},
	edition = {2 ed.},
	url = {https://www.santoandre.sp.gov.br/pesquisa/con_detalhe.asp?ID=153012&vHistoryNovo=sim}
}