Agus Setiawan, author
Fakultas Ilmu Pengetahuan Budaya, 2003
UI - Laporan Penelitian
Kierman, Brian
William Heinemann Australia, 1990
Buku Teks
edited by Carl Bode
Johns Hopkins University Press, 1974
Buku Teks
Hendel, Charles W., author
The Bobbs-Merrill, 1963
Buku Teks
Carroll, Dennis, author
Macmillan, 1987
Buku Teks