books.google.co.kr - In its 114th year, Billboard remains the world's premier weekly music publication and a diverse digital, events, brand, content and data licensing platform. Billboard publishes the most trusted charts and offers unrivaled reporting about the latest music, video, gaming, media, digital and mobile entertainment...http://books.google.co.kr/books/about/Billboard.html?hl=zh-TW&id=ugkEAAAAMBAJ&utm_source=gb-gplus-shareBillboard
