Christine
St. Dominic Publishing, 2016
Buku Referensi
Fairservis, Walter A., author
Selasar Publishing, 2009
Buku Teks
Mariana Makmur, author
1993
UI - Tesis (Membership)
Artikel Jurnal
Leakey, Richard E., author
Richard Leakey Foundation, 1995
Buku Teks