Warren M. Robbins, African Art: the de Havenon Collection, Washington, D.C., 1971, n.p., pls. 95-96 (both figures)
Susan M. Vogel, African Sculpture: the Shape of Surprise, Greenvale, New York, 1980, p. 43, cat. no. 23 (both figures; listed)
William Rubin, ed., "Primitivism" in 20th Century Art: Affinity of the Tribal and the Modern, New York, 1984, vol. 2, pp. 570 and 585 (male figure)
William Rubin and Ezio Bassani, eds., Primitivismo nell’arte del XX secolo: affinità fra il tribale e il moderno, Milan, 1985, vol. 2, pp. 570 and 585 (male figure)
William Rubin and Jean-Louis Paudrat, eds., Le primitivisme dans l'art du 20e siècle. Les artistes modernes devant l’art tribal, Paris, 1987, vol. 2, pp. 570 and 585 (male figure)
Warren M. Robbins and Nancy Ingram Nooter, African Art in American Collections, Survey 1989, Washington, D.C., 1989, p. 122, fig. 171 (male figure)
Mary N. Nooter, Secrecy: African Art that Conceals and Reveals, New York, 1993, p. 103, cat. no. 30 (male figure)
William Rubin, ed., Nijisseiki bijutsu ni okeru purimitivizumu : buzokuteki naru mono to modan naru mono to no shin’ensei, Kyoto, 1995, vol. 2, pp. 570 and 585 (male figure)