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^Johansson, U.S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes. Molecular Phylogenetics and Evolution. 2018, 126: 17–22. PMID 29631051. S2CID 5011292. doi:10.1016/j.ympev.2018.03.030(英语).
^Fry, Kathie; Fry, C. Hilary; Harris, Alan. Kingfishers, Bee-eaters and Rollers 1. Christopher Helm. 1992. ISBN 0-7136-8028-8(英语).