William Alexander NewmanW.A.N.DorlandWilliam Alexander NewmanW.A.N., Dorland's illustrated medical dictionary, wyd. 32, Philadelphia, PA: Saunders/Elsevier, 2012, s. 1551, ISBN 978-1-4160-6257-8, OCLC706780870.
ShawnS.SmithShawnS., KimberlyK.McClanahanKimberlyK., HatimH.OmarHatimH., Adolescent pubertal development, [w:] Joseph S.J.S.Sanfilippo i inni red., Clinical pediatric and adolescent gynecology, New York, NY: Informa Healthcare, 2009, s. 20-31, ISBN 978-0-415-44888-8, OCLC253188123.
PaulP.KaplowitzPaulP., Precocious puberty, [w:] Joseph S.J.S.Sanfilippo i inni red., Clinical pediatric and adolescent gynecology, New York, NY: Informa Healthcare, 2009, s. 32-39, ISBN 978-0-415-44888-8, OCLC253188123.
