Biosecurity for highly pathogenic avian influenza : issues and options, 2008. [na spletu], Rome : Food and Agriculture Organization of the United Nations. [Dostopano 2 april 2025]. ISBN 978-92-5-106074-2. Pridobljeno s: ftp://ftp.fao.org/docrep/fao/011/i0359e/i0359e00.pdf