Fischbach, Frances Talaska
J.B. Lippincott, 1992
Buku Teks SO
Jones, Norris W.
McGraw-Hill, 2001
Buku Teks
Brewer, Richard
Saunders College, 1982
Buku Referensi
Enger, Eldon D.
McGraw-Hill, 2009
Buku Teks
Cooper, Melanie M.
McGraw-Hill, 2009
Buku Teks SO