Halsall, Fred, author
Pitman, 1982
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1990
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1983
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1983
Buku Teks
Bolton, W. (William), 1933-, author
Longman , 2000
Buku Teks