World Health Organization, regional Office for South-East Asia. (2013). Frequently asked questions on chikungunya fever. World Health Organization, regional Office for South-East Asia.
Chicago-referens (17:e uppl.)World Health Organization, regional Office for South-East Asia. Frequently Asked Questions on Chikungunya Fever. New Delhi: World Health Organization, regional Office for South-East Asia, 2013.
MLA-referens (8:e uppl.)World Health Organization, regional Office for South-East Asia. Frequently Asked Questions on Chikungunya Fever. World Health Organization, regional Office for South-East Asia, 2013.
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