Tài liệu tham khảo

WikiPedia: Angel_Links http://www.animenewsnetwork.com/review/angel-links... http://www.animenewsnetwork.com/review/angel-links... http://www.animenewsnetwork.com/review/angel-links... http://www.animenewsnetwork.com/review/angel-links... http://books.livedoor.com/item/1353598 http://www.mania.com/angel-links-anime-legends-com... http://www.mania.com/angel-links-vol-1_article_733... http://www.mania.com/angel-links-vol-2_article_733... http://www.mania.com/angel-links-vol-3_article_733... http://www.mania.com/angel-links-vol-4_article_733...