Doniger, Wendy (2003). Kamasutra - Oxford World's Classics. Oxford University Press. стр. i. ISBN9780192839824. „'The Kamasutra is the oldest extant Hindu textbook of erotic love. It was composed in Sanskrit, the literary language of ancient India, probably in North India and probably sometime in the third century'”
Laipson, P. (1996-03-01). „"Kiss Without Shame, For She Desires It": Sexual Foreplay in American Marital Advice Literature, 1900-1925”. Journal of Social History. 29 (3): 507—525. ISSN0022-4529. doi:10.1353/jsh/29.3.507.
Leonhardt, Nathan D.; Willoughby, Brian J. (фебруар 2019). „Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction”. Journal of Social and Personal Relationships. 36 (2): 618—641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.CS1 одржавање: Формат датума (веза)
Leonhardt, Nathan D.; Willoughby, Brian J. (фебруар 2019). „Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction”. Journal of Social and Personal Relationships. 36 (2): 618—641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.CS1 одржавање: Формат датума (веза)
Lehmiller, Justin J. (2017-10-12). The psychology of human sexuality (Second изд.). Hoboken, NJ. ISBN9781119164708. OCLC992580729.
Laipson, P. (1996-03-01). „"Kiss Without Shame, For She Desires It": Sexual Foreplay in American Marital Advice Literature, 1900-1925”. Journal of Social History. 29 (3): 507—525. ISSN0022-4529. doi:10.1353/jsh/29.3.507.
Leonhardt, Nathan D.; Willoughby, Brian J. (фебруар 2019). „Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction”. Journal of Social and Personal Relationships. 36 (2): 618—641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.CS1 одржавање: Формат датума (веза)