[Book] Quick, Jennifer. 2004. Magnificent Objects from the University of Pennsylvania Museum of Archaeology and Anthropology.|[Catalogue] 1965. Reproductions.|[Catalogue] Plass, Margaret B. 1956. African TribalSculpture.|[Journal] Wieschhoff, H. A. The African Collections of The University Museum Vol.: Vol. 11, Nos. 1-2.|[Book] Hall, Henry U. 1922. "Great Benin Royal Altar". XIII, No.2 (June). 105-168.|[Catalogue, Exhibition] Curnow, Kathy. 2016. Iyare! Splendor and Tension In Benin's Palace Theatre.