Gregory A. Barker

• The Ultimate Guide to Singing
• Jesus In The World's Faiths
• WJEC/Eduqas Religious Studies for A Level Year 2 and A2 : Philosophy of Religion
• CBAC Astudiaethau Crefyddol UG Athroniaeth Crefydd
• CBAC Astudiaethau Crefyddol U2 Athroniaeth Crefydd
• Jesus beyond Christianity
• Jesus beyond Christianity
• Jesus Beyond Christianity: The Classic Texts
• Jesus in the World's Faiths
• WJEC/Eduqas Religious Studies for A Level Year 1 and AS : Philosophy of Religion
• WJEC/Eduqas Religious Studies for A Level Year 2/A2