Sheth, Jagdish N.
Ohio South-Western Pub, 1989
Buku Teks SO
Cateora, Philip R.
McGraw-Hill, 1999
Buku Teks SO
Cateora, Philip R.
Richard D. Irwin, 1993
Buku Teks SO
Cateora, Philip R.
Richard D. Irwin, 1996
Buku Teks SO
Cateora, Philip R.
MCGraw-Hill, 2005
Buku Teks SO