Springhouse Corporation, 1997
Buku Referensi
Hodgon, Barbara B., author
Elsevier , 2005
Buku Teks SO
Karch, Amy M., author
Lippincott Williams & Wilkins, 2001
Buku Referensi
Karch, Amy M., author
Lippincott Williams & Wilkins , 2003
Buku Referensi
Karch, Amy M., author
Lippincott Williams & Wilkins , 2004
Buku Teks SO