洗腦 (喬治·哈里森專輯)Weeps: The Music of George Harrison, Hal Leonard (Milwaukee, WI, 2006; ISBN 1-4234-0609-5). Marc Shapiro, Behind Sad Eyes:The Life of George Harrison (New York
資訊經濟學Encyclopedia of the Social & Behavioral Sciences, pp. 13760-13768. Abstract. Shapiro, Carl, and Hal R. Varian (1999). Information Rules: A Strategic Guide to
印地語-烏爾都語音系Cardona, George; Jain, Dhanesh (编), The Indo-Aryan Languages, Routledge: 286–350, 2003 [2009-10-20], ISBN 9780415772945, (原始内容存档于2014-10-02) . Shapiro, Michael