| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| CBAC Astudiaethau Crefyddol UG Athroniaeth Crefydd Cannllaw Adolygu | Paperback | 978-1-912820-21-4 | 2019 | Richard Gray |
| Jesus Beyond Christianity: The Classic Texts | Hardcover | 978-0-19-955345-7 | 2010 | Stephen E. Gregg |
| Jesus Beyond Christianity: The Classic Texts | Paperback | 978-0-19-955344-0 | 2009 | " |
| Jesus in the World's Faiths: Leading Thinkers from Five Religions Reflect on His Meaning | " | 978-1-57075-573-6 | 2005 | |
| The Ultimate Guide to Singing: Gigs, Sound, Money and Health | " | 978-0-9920344-0-5 | 2014 | Tc-Helicon · Kathy Alexander |
| WJEC/Eduqas Religious Studies for A Level Year 1 & AS - Religion and Ethics Revision Guide | " | 978-1-911208-68-6 | 2019 | Richard Gray |
A. B. · A. Barker · G. A. · G.B. · G Barker · Gregory A Barker M.DIV. PH.D. · Gregory Barker
Illuminate Publishing · Orbis Books · Oxford University Press · TC-Helicon