There are many places to find lists of church cemetery burials. One of your first searches should be on the Family History Library Catalog. Search on the place where the church is located and then look under the subject category "cemeteries." You can also conduct a keyword search for the name of the church or cemetery.
Online cemetery websites like Find A Grave and Interment.net can also be places to find burials. The USGenWeb and other genealogically related websites might also be of use.
In some cases, you might find information information posted by the church or local volunteers. To find these documents, Google the name of the church and/or the cemetery. A good example is this pdf document for the Liberty Baptist Church Cemetery in Bessemer, Alabama. This includes information about the cemetery as well as a census of the burials.