Williams obstetrics
edited by F. Gary Cunningham, Kenneth J. Leveno
McGraw-Hill Medical, 2010
 Buku Teks SO
Williams obstetrics : Study guide
Shivani Patel, Scott Roberts, Vanessa Rogers, Ashley Zink, Elaine Duryea, Jamie Morgan, editor
McGraw-Hill Medical, 2019
 Buku Teks SO
Williams obstetrics / edited by, F. Gary Cunningham, Kenneth J. Leveno, Steven L. Bloom, Catherine Y. Spong, Jodi S. Dashe, Barbara L. Hoffman, Brian M. Casey, Jeanne S. Sheffield. Also Titled
McGraw-Hill, 2014
 Buku Teks SO
Llewellyn-Jones, Derek
Fundamentals of Obstetrics and Gynaecology: obstetrics
English Language Book Society, 1982
 Buku Teks SO
Basic gynecology and obstetrics
edited by Norman F. Gant
Prentice-Hall, 1993
 Buku Teks SO