* [http://www.publishersweekly.com/pw/by-topic/industry-news/financial-reporting/article/52677-the-world-s-54-largest-book-publishers-2012.html The Global 50: The World's Largest Book Publishers, 2012] | * [http://www.publishersweekly.com/pw/by-topic/industry-news/financial-reporting/article/52677-the-world-s-54-largest-book-publishers-2012.html The Global 50: The World's Largest Book Publishers, 2012] |