1. Larco Hoyle R: Los mochicas I. 1938, Casa editora "La Crónica" y "Variedades", S. A. Ltda. Lima
2. Larco Hoyle R: Los Mochicas II. 1939, Casa editora "La Crónica" y "Variedades", S. A. Ltda. Lima
3. McClelland D: The Ulluchu: A Moche Symbolic Fruit. Pre-Columbian Art History. Edited by: Cordy-Collins A, Stern J. 1977, Peek Publications, Palo Alto, 435-452.
4. Wassen H: "Ulluchu " Moche Iconography and Blood Ceremonies: The Search for Identification. Göteborg Etnografiska Museum, Annals 1985/86. 1987
5. Hultin E, Wassén H, Bondeson W: Papain in Moche Blood ceremonies. Journal of Ethnopharmacologie. 1987, 19 (2): 227-228. 10.1016/0378-8741(87)90045-6.