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[2] Menstruation and the menstrual cycle fact sheet. Office of Women's Health. December 23, 2014 [25 June 2015].
[3] Karapanou O, Papadimitriou A (September 2010). "Determinants of menarche". Reproductive Biology and Endocrinology. 8: 115.
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[5] Women's Gynecologic Health. Jones & Bartlett Publishers. 2011. p. 94. ISBN 9780763756376.
[6] Dee Unglaub Silverthorn. Human physiology: an integrated approach Third edition. San Francisco: Pearson/Benjamin Cummings. 2004: Chapter 26: Reproduction and Development, and Chapter 23 Endocrine control of growth and metabolism. ISBN 978-0-13-102015-3.