Choi, Hyun-sun
Algo sipoyo dongmul 11
Yerimdany, 1990
Buku Teks
Benyus, Janine M. author
The Secret language of animals : a guide to remarkable behavior
Black Dog & Leventhal Publishers, 2014
Buku Referensi
Linden, Eugene
The parrot's lament: and other true tales of animal intrigue, intelligence and ingenvity
A Dutton Book, 1999
Buku Teks SO
Tatang Mitra Setia
Hirarki dominansi orangutan jantan dewasa serta tanggapan orangutan jantan dan betina dewasa terhadap seruan panjang dari jantan dewasa lain di Pusat Penelitian Ketambe, Taman Nasional Gunung Leuser
1995
UI - Tesis Membership
Scott, John Paul
Animal behavior
University of Chicago Press, 1958
Buku Teks