Guiltinan, Joseph P.
McGraw-Hill , 1991
Buku Teks
Guiltinan, Joseph P.
McGraw-Hill , 1985
Buku Teks
Guiltinan, Joseph P.
New York McGraw-Hill 1983,
Buku Teks
Converse, Paul Dulaney, 1889-
Prentice-Hall, 1948
Buku Teks
Frank, Ronald E.
Prentice-Hall, 1967
Buku Teks