The Encyclopaedia of reptiles and amphibians
editors, Tim Halliday, Kraig Adler
Facts on File, 1994
 Buku Referensi
Carr, Archie
The reptiles
Time Incorporated, 1970
 Buku Teks SO
Immature insects
edited by Frederick W. Stehr
Kendall/Hunt, 1991
 Buku Teks SO
Immature insects
edited by Frederick W. Stehr
Kendall/Hunt, 1991
 Buku Teks SO
Immature insects
edited by Frederick W. Stehr
Kendall/Hunt, 1987
 Buku Teks SO