Roger J. Owen

• Awdurdod crefyddol
• Buddhism for As Students
• Help the Aged (Charities Series) (Charities)
• I wish he was black
• Life, Death and Life after Death
• Nspcc
• O na bai'n ddu
• A Bayesian approach to tailored testing
• Crefydd Mewn Cymdeithas Gyfoes Ar Gyfer Myfyrwyr UG - Llawlyfr Yr Athrawon
• Friend of Drug Addicts
• Islam Ar Gyfer Myfyrwyr UG
• The United Nations and its agencies