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- eBookSailboat ChurchJoan S. Gray
- eBookPresbyterian Polity for Church Leaders, Fourth EditionJoan S. Gray
- eBookPresbyterian Polity for Church Leaders, Updated Fourth EditionJoan S. Gray
- eBookSpiritual Leadership for Church OfficersJoan S. Gray
- eBookSailboat ChurchJoan S. Gray
- eBookPresbyterian Polity for Church Leaders, Fourth EditionJoan S. Gray