1. Diagnosing Medical Parasites through Coprological Techniques;Arcari,2000
2. Species Factsheet: Pelecanus Philippensis;BirdLife International,2019
3. Georgis Parasitology for Veterinarians;Bowman,1999
4. The gastro- intestinal helminth fauna of the eider duck (Somateria mollissima L.) in The Netherlands;Borgsteede;Helminthologia,2005
5. Of pelicans and power plants;Chandrasekhar;Mistnet,2009