Back in the early 1990s the California Cherimoya Association decided to put together all their knowledge about the fruit and plant - from history to pollination and costs of production. There are numerous authors who are steeped in love of the fruit. It took several years to bring this all together. finalizing in 1995. It was only available to members of the Association, but now it's available on-line. If you make citation to this work, please recognize the CCA for all the effort that went into it, as well as the individual authors. This is the definitive work on California cherimoyas.
https://ceventura.ucanr.edu/Com_Ag/Subtropical/Minor_Subtropicals/TEST_1_/
Book 1: CCA Cherimoya Growers Handbook - Digital Version (PDF)
Chapter 1: History - Art Schroeder
Chapter 2: Botany - Art Schroeder
Chapter 3: Cultivars - Norm Ellstrand
Chapter 4: Propagation - Rob Brokaw
Chapter 5: Soil Fertility Management - Ben Faber
Chapter 6: Irrigation Management - Ben Faber
Chapter 7: Pruning and Training - Scott Van Der Kar
Chapter 8: Pollination - Theory and Practice - Tracy Kahn
Chapter 9: Insect Pest and Disease - Gary Bender
Chapter 10: Postharvest Handling - Mary Lu Arpaia
Chapter 11: Marketing - Peter Nichols
Chapter 12: Costs of Production - Claude Sweet