Pennsylvania Elsevier, 2014
Buku Teks SO
Anderson, Scarvia B.
Jossey-Bass, 1978
Buku Teks
Nugent William R.
Thomson Learning, 2001
Buku Teks
Morris, J. Walker
Willam Heinemann, 1973
Buku Teks SO
Rubin, Allen
Brooks/Cole Cengage Learning, 2013
Buku Teks SO