Apus apus (Indonesian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Apus apus" in Indonesian language version.

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doi.org

BirdLife International (2014). "Apus apus". IUCN Red List of Threatened Species. 2014: e.T22686800A62552970. doi:10.2305/IUCN.UK.2014-2.RLTS.T22686800A62552970.en.