Walker, Theodore D.
Van Nostrand Reinhol, 1990
Buku Teks
Martin, C. Leslie
Macmillan, 1970
Buku Teks
Ching, Francis D.K., 1943-
John Wiley & Sons, 2003
Buku Teks
Ching, Frank
Van Nonstrand Reinhold Company, 1975
Buku Teks
Ciriello, Marco
McGraw-Hill, 2002
Buku Teks