Ilama—Julia Morton, Fruits of warm climates
Neglected Crops: 1492 from a Different Perspective. 1994. J.E. Hernándo Bermejo and J. León (eds.). Plant Production and Protection Series No. 26. FAO, Rome, Italy. p. 47-62.
Magness J.R. et al. 1971. Food and feed crops of the United States.(also includes information on Annona diversifolia)