Bushell, Stephen W., author
Wyman and Sons, 1906
Buku Teks
Esty Hayuningtyas, author
Universitas Indonesia, 2013
UI - Skripsi (Membership)
Sloterdijk, Peter, 1947-, author
Polity Press, 2017
Buku Teks
Holt, Claire, author
Cornell University Press, 1967
Buku Teks
Taylor, Paul Michael, author
National Museum of Natural History, 1991
Buku Referensi