Houghton, John. The Harry Potter Effect: Simbol Terang dan Gelap?. - Yogyakarta: Andi, 2007. - xvii, 238p. 20 cm. ISBN: 9797639002 Subjects--Topical Terms: Harry PotterSimbol LC Class. No.: PR6068.O93 / .Z7 2007 Dewey Class. No.: 823.914