Animals in research: new perspectives in animal experimentation
edited by David Sperlinger
John Wiley & Sons, 1981
 Buku Teks
The verb-marking relative clause strategy Bernard Comrie
 Artikel Jurnal
Animal agriculture: the biology of domestics animals and their use by man
edited by H.H. Cole and Magnar Ronning
W.H. Freeman, 1974
 Buku Teks
Sharp, David
Animal days : animals from the hot lands
Bay Books, 1984
 Buku Referensi
Sharp, David
Animal days : animals from the cold lands
Bay Books, 1984
 Buku Referensi