Universitas Indonesia, 1994
UI - Tugas Akhir
Cain, Nancy Woodard, author
Prentice Hall Press, 1987
Buku Teks
Jourdain, Robert, author
Brady Publishing, 1991
Buku Teks
Van, Wolverton, author
Erlangga, 1989
Buku Teks
Universitas Indonesia, 1995
UI - Tugas Akhir