Hatzimouratidis, Konstantinos; et al. (2010). "Guidelines on male sexual dysfunction: erectile dysfunction and premature ejaculation". European Urology. 57 (5): 804–814. doi:10.1016/j.eururo.2010.02.020. PMID20189712. S2CID4640632.
Reece, Rex (1987). "Causes and Treatments of Sexual Desire Discrepancies in Male Couples". Journal of Homosexuality. 14 (1–2): 157–172. doi:10.1300/J082v14n01_12. PMID3655339.
Hatzimouratidis, Konstantinos; et al. (2010). "Guidelines on male sexual dysfunction: erectile dysfunction and premature ejaculation". European Urology. 57 (5): 804–814. doi:10.1016/j.eururo.2010.02.020. PMID20189712. S2CID4640632.
Reece, Rex (1987). "Causes and Treatments of Sexual Desire Discrepancies in Male Couples". Journal of Homosexuality. 14 (1–2): 157–172. doi:10.1300/J082v14n01_12. PMID3655339.
Hatzimouratidis, Konstantinos; et al. (2010). "Guidelines on male sexual dysfunction: erectile dysfunction and premature ejaculation". European Urology. 57 (5): 804–814. doi:10.1016/j.eururo.2010.02.020. PMID20189712. S2CID4640632.