The Suicide Funeral (or Memorial Service) 2017, edited by Melinda Moore and Daniel A. Roberts.

The editors say, “This book is designed to assist clergy, chaplains, and other faith leaders as they develop sermons and homilies for a funeral service. …Those who plan and lead a funeral service may enable family and friends to understand and participate intentionally in their grief process.” 

This is an interfaith resource.  Daniel Roberts is rabbi emeritus of Temple Emanu El in Cleveland