Todd, James P., author
John Wiley & Sons, 1981
Buku Teks
Stowe, Keith S., 1943-
Wiley, 1984
Buku Teks
Ott, Lyman, author
Duxbury Press, 1993
Buku Teks
Guy, Dan M., author
John Wiley & Sons, 1981
Buku Teks
Napitupulu, Richard A.M., author
2000
UI - Tesis (Membership)