Ajeng Wind
Ensiklopedia adaptasi di alam raya
Bhuana Ilmu Populer, 2018
 Buku Teks
The Encyclopedia of mammals: 1
edited by David Macdonald
Grolier International, 1993
 Buku Referensi
Frederic, Louis
Japan encyclopedia
Belknap Press, 2002
 Buku Referensi
The encyclopedia of philosophy
editor, Donald M. Borchert
Macmilan, 1996
 Buku Referensi
Encyclopedia of psychology
edited by Raymond J. Corsini
New York : John Wiley & Sons, 1990,
 Buku Referensi