Fischbach, Frances Talaska
J.B. Lippincott, 1992
Buku Teks SO
Jones, Norris W.
McGraw-Hill, 2001
Buku Teks
Lewis, Ricki
McGraw-HIll, 1999
Buku Teks
Enger, Eldon D.
McGraw-HIll, 2003
Buku Teks
Brewer, Richard
Saunders College Publishing, 1982
Buku Referensi