Atkinson, Laurence Y.
John Wiley & Sons, 1980
Buku Teks SO
Tremblay, Jean-Paul, 1938-
McGraw-Hill, 1980
Buku Teks SO
Iman Suwidodo
Andi, 1986
Buku Teks SO
Nasution, Amrinsyah
Erlangga, 1989
Buku Teks SO
Grogono, Peter
Addison-Wesley, 1978
Buku Teks SO