Bazan, E. and A. De Michele. Quantitative characteristics of pawpaw fruits grown under cover in Sicily. Campbell, C.W. 1984. Handbook of tropical food crops. Couey, H.M. 1985.
Papayas get into hot water, leave Hawaii.
USDA, ARS, Agric. Harkness, R.W. 1967. Papaya growing in Florida. 19, Indian Inst. Res., Bangalore, India.