Patton, Kevin T.
Elsevier/Mosby, 2013
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Harold J. Benson ... [and others]
McGraw-HIll, 1999
Buku Teks SO
Nora Hebert, Rith E. Heisler, Jett Chinn, Olga Malakhova
Pearson, 2015
Buku Referensi
McClintic, J. Robert
John Wiley & Sons, 1976
Buku Teks SO
Hill, David J.
Mosby/Elsevier, 2012
Buku Teks SO