Day, R.A., author
[publisher not identified], [date of publication not identified]
Buku Teks
Buku Teks
Day, R.A., author
Erlangga, 2002
Buku Teks
Day, R.A., author
Erlangga , 1999
Buku Teks
Linda Rosleni, author
Universitas Indonesia, 1998
UI - Skripsi (Membership)