ogeography of the drongos (Dicruridae), a tropical Old World clade of corvoid passerines" (PDF). Molecular Phylogenetics and Evolution. 45 (1): 158–167. doi:10.1016/j.ympev.2007.03.010. PMID 17468015. 2015-09-23 දින මුල් පිටපත (PDF) වෙතින් සංරක්ෂණය කරන ලදී. සම්ප්‍රවේශය 2014-04-10.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ 12.0 12.1 12.2 12.3 12.4 12.5 Vaurie, Charles (1949). "A revision of the bird family Dicruridae". Bulletin of the AMNH. 93 (4): 203–342. සැකිල්ල:Hdl.↑ 13.0 13.1 Rasmussen, Pamela C. (2005). Birds of South Asia: The Ripley Guide. Volume 2. Smithsonian Institution and Lynx Edicions. p. 590. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)↑ Baker, ECS (1921). "Handlist of the birds of the Indian empire". J. Bombay Nat. Hist. Soc. 27 (3): 46–47.↑ 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 Shukkur, EAA and Joseph, KJ (1978). "Breeding biology of the Black Drongo". J. Bombay Nat. Hist. Soc. 75 (4): 1212–1226.