Payne, R. & Kirwan, G.M.: Black-faced Waxbill (Estrilda erythronotos). [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]. 2020. [zarchiwizowane z tego adresu (2020-05-10)].
Payne, R. & Kirwan, G.M.: Black-faced Waxbill (Estrilda erythronotos). [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]. 2020. [zarchiwizowane z tego adresu (2020-05-10)].