Li CY; Kayes O; Kell PD; Christopher N; Minhas S; Ralph DJ (2006). “Penile suspensory ligament division for penile augmentation: indications and results”. 《Eur. Urol.》 4판 49: 729–33. doi:10.1016/j.eururo.2006.01.020. ISSN0302-2838. PMID16473458.
Sparling J (1997). “Penile erections: shape, angle, and length”. 《Journal of Sex & Marital Therapy》 23 (3): 195–207. doi:10.1080/00926239708403924. PMID9292834.
Li CY; Kayes O; Kell PD; Christopher N; Minhas S; Ralph DJ (2006). “Penile suspensory ligament division for penile augmentation: indications and results”. 《Eur. Urol.》 4판 49: 729–33. doi:10.1016/j.eururo.2006.01.020. ISSN0302-2838. PMID16473458.
Sparling J (1997). “Penile erections: shape, angle, and length”. 《Journal of Sex & Marital Therapy》 23 (3): 195–207. doi:10.1080/00926239708403924. PMID9292834.
Li CY; Kayes O; Kell PD; Christopher N; Minhas S; Ralph DJ (2006). “Penile suspensory ligament division for penile augmentation: indications and results”. 《Eur. Urol.》 4판 49: 729–33. doi:10.1016/j.eururo.2006.01.020. ISSN0302-2838. PMID16473458.