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1 Solitary sex: A cultural history of masturbation., Zone Books. (2003). 501 pp.

2 A. Dana Menard, Peggy J. Kleinplatz Twenty-one Moves Guaranteed to Make his Thighs go up in Flames: Depictions of "Great Sex" in Popular Magazines, Sexuality & Culture March 2008, Volume 12, Issue 1, pp 1-20

3 Kleinplatz, Peggy J.; Menard, A. Dana; Paquet, Marie-Pierre; Paradis, Nicolas; Campbell, , The components of optimal sexuality: A portrait of "great sex." , Canadian Journal of Human Sexuality, Vol 18(1-2), 2009, 1-13.

4 Hui Meng Tan, Ken Marumo, Dae-yul Yang, Thomas I-sheng Hwang and Moh-Lim Ong, Sex among Asian men and women: The Global Better Sex Survey in Asia , International Journal of Urology Volume 16, Issue 5, pages 507-514, May 2009

5 John Mulhall MD, Rosie King MBBS, Sidney Glina MD, PhD andKyle Hvidsten MPH, Importance of and Satisfaction with Sex Among Men and Women Worldwide: Results of the Global Better Sex Survey , The Journal of Sexual Medicine Volume 5, Issue 4, pages 788-795, April 2008

6 SPB Botanical documentation