Anderson SE, Dallal GE, Must A (April 2003). "Relative weight and race influence average age at menarche: results from two nationally representative surveys of US girls studied 25 years apart". Pediatrics. 111 (4 Pt 1): 844-850. doi:10.1542/peds.111.4.844. PMID12671122.
Buck Louis GM, Gray LE, Marcus M, Ojeda SR, Pescovitz OH, Witchel SF, Sippell W, Abbott DH, Soto A, Tyl RW, Bourguignon JP, Skakkebaek NE, Swan SH, Golub MS, Wabitsch M, Toppari J, Euling SY (February 2008). "Environmental factors and puberty timing: expert panel research needs". Pediatrics. 121 Suppl 3: S192-207. doi:10.1542/peds.1813E. PMID18245512.
Mouritsen A, Aksglaede L, Sørensen K, Mogensen SS, Leffers H, Main KM, Frederiksen H, Andersson AM, Skakkebaek NE, Juul A (April 2010). "Hypothesis: exposure to endocrine-disrupting chemicals may interfere with timing of puberty". Int. J. Androl. 33 (2): 346-59. doi:10.1111/j.1365-2605.2010.01051.x. PMID20487042.
nih.gov
ncbi.nlm.nih.gov
Anderson SE, Dallal GE, Must A (April 2003). "Relative weight and race influence average age at menarche: results from two nationally representative surveys of US girls studied 25 years apart". Pediatrics. 111 (4 Pt 1): 844-850. doi:10.1542/peds.111.4.844. PMID12671122.
Buck Louis GM, Gray LE, Marcus M, Ojeda SR, Pescovitz OH, Witchel SF, Sippell W, Abbott DH, Soto A, Tyl RW, Bourguignon JP, Skakkebaek NE, Swan SH, Golub MS, Wabitsch M, Toppari J, Euling SY (February 2008). "Environmental factors and puberty timing: expert panel research needs". Pediatrics. 121 Suppl 3: S192-207. doi:10.1542/peds.1813E. PMID18245512.
Mouritsen A, Aksglaede L, Sørensen K, Mogensen SS, Leffers H, Main KM, Frederiksen H, Andersson AM, Skakkebaek NE, Juul A (April 2010). "Hypothesis: exposure to endocrine-disrupting chemicals may interfere with timing of puberty". Int. J. Androl. 33 (2): 346-59. doi:10.1111/j.1365-2605.2010.01051.x. PMID20487042.
pamf.org
"For girls, puberty begins around 10 or 11 years of age and ends around age 16. Boys enter puberty later than girls-usually around 12 years of age-and it lasts until around age 16 or 17." "Teenage Growth & Development: 11 to 14 Years". Palo Alto Medical Foundation/pamf.org. 5 Nisan 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 9 Kasım 2013.
Hamilton-Fairley, Diana. "Obstetrics and Gynaecology"(PDF) (Second bas.). Blackwell Publishing. 9 Ekim 2018 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 9 Kasım 2013.
"For girls, puberty begins around 10 or 11 years of age and ends around age 16. Boys enter puberty later than girls-usually around 12 years of age-and it lasts until around age 16 or 17." "Teenage Growth & Development: 11 to 14 Years". Palo Alto Medical Foundation/pamf.org. 5 Nisan 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 9 Kasım 2013.
Hamilton-Fairley, Diana. "Obstetrics and Gynaecology"(PDF) (Second bas.). Blackwell Publishing. 9 Ekim 2018 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 9 Kasım 2013.