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Sharma RK. On a new nematode Spirocaudata bispiculatum gen.nov. sp.nov. (Ancyracanthidae) from the koel, Eudynamys scolopacea. Parasitology. 1971, 62: 49–52. S2CID 86835425. doi:10.1017/S0031182000071286.
Rawlinson PA; RA Zann; S Balen & IWB Thornton. Colonization of the Krakatau islands by vertebrates. GeoJournal. 1992, 28 (2): 225–231. S2CID 189887589. doi:10.1007/BF00177236.
Lamba, BS. The Indian crows: a contribution to their breeding biology, with notes on brood parasitism on them by the Indian Koel. Records of the Zoological Survey of India. 1976, 71 (1–4): 183–300. S2CID 251705301. doi:10.26515/rzsi/v71/i1-4/1975/161963.
Begum S, Moksnes A, Røskaft E, Stokke BG. Factors influencing host nest use by the brood parasitic Asian Koel (Eudynamys scolopacea). Journal of Ornithology. 2011, 152 (3): 793–800. S2CID 39665560. doi:10.1007/s10336-011-0652-y.
Sharma RK. On a new nematode Spirocaudata bispiculatum gen.nov. sp.nov. (Ancyracanthidae) from the koel, Eudynamys scolopacea. Parasitology. 1971, 62: 49–52. S2CID 86835425. doi:10.1017/S0031182000071286.