Sanders, Donald H.
McGraw-Hill, 1977
Buku Teks SO
Laver, Murray
Oxford University Press, 1975
Buku Teks SO
edited by M. David Ermann, Mary B. Williams and Claudio Gutierrez
Oxford University Press, 1990
Buku Teks SO
Sanders, Donald H.
McGraw-Hill , 1974
Buku Teks
Radlow, James
McGraw-Hill, 1986
Buku Teks SO