Apsanti Djokosuyatno
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1992
UI - Laporan Penelitian
Miksic, John N.
Eric M. Oey, 1999
Buku Referensi
Miksic, John N.
Wira Mandala Pustaka, 1999
Buku Teks SO
James, Peter
Ballantine Books, 2001
Buku Teks SO
Clark, Adrian V.
Parker Publishing, 1968
Buku Teks SO