Veale, D.; Miles, S.; Bramley, S.; Muir, G.; Hodsoll, J. (2015). "Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15 521 men". BJU International115 (6): 978–986. doi:10.1111/bju.13010. பப்மெட்:25487360.
Veale, D.; Miles, S.; Bramley, S.; Muir, G.; Hodsoll, J. (2015). "Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15 521 men". BJU International115 (6): 978–986. doi:10.1111/bju.13010. பப்மெட்:25487360.