Manahan, Stanley E.
Lewis Publishers, 1993
Buku Teks SO
Baird, Colin
WH Freeman, 2001
Buku Teks SO
Manahan, Stanley E.
Lewis Publisher, 1994
Buku Teks SO
Manahan, Stanley E.
Willand Grand Press, [Date of publication not identified]
Buku Teks SO
O`Neill, Peter
Champman & Hall, 1993
Buku Teks SO