Corey, Gerald
Brooks/Cole, Cengage Learning, 2012
Buku Teks SO
edited by William F. Bluhm, Daniel D. Skwire, Stephen J. Kaczmarek and Kristi M. Bohn
ACTEX Publications, 2012
Buku Teks
Kaplan, Harold I.
Williams & Wilklins , 1993
Buku Teks SO
Passman, Donald S.
John Wiley & Sons, 1979
Buku Teks SO
Joshi, A.W.
Wiley Eastern, 1982
Buku Teks SO