London Routledge 1996,
Buku Teks
Lucia W. Muslimin
Jakarta Dikti Depdikbud 1995,
Buku Teks
Mazur, Allan, author
Englewood Cliffs Prentice Hall 1991,
Buku Referensi
Yogyakarta Aditya Media 1992,
Buku Teks
Widjono AMZ, Roedy Haryo
Jakarta Grasindo 1998,
Buku Teks