Budak, Aram
Prentice-Hall, 1978
Buku Teks
Ryder, John D. (John Douglas)
Prentice-Hall, 1973
Buku Teks
Budak, Aram
[Publisher not identified], [Date of publication not identified]
Buku Referensi
Director, Stephen W., 1943-
John Wiley & Sons, 1975
Buku Teks
Johnson, David E.
Prentice-Hall, 1984
Buku Teks