Sato, G. Takeshi, author
Pradnya Paramita, 1994
Buku Teks
Sato, G. Takeshi, author
Pradnya Paramita, 2000
Buku Teks
Hutchins, Greg, author
Oliver Wright Publications, 1994
Buku Referensi
Nee, Paul A.
John Wiley & Sons, 1996
Buku Teks
Goetsch, David L., author
Prentice-Hall, 2002
Buku Teks