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Boles, W. & Sharpe, C.J.: Sangihe Whistler (Coracornis sanghirensis). [w:] del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (red.). Handbook of the Birds of the World Alive [on-line]. 2018. [dostęp 2018-10-16].