BTEC Cenedlaethol Gwasanaethau Cyhoeddus Lefel 3Debra Gray, Tracey Lilley, John Vause, Eirian Jones, Ffion Kervegant · First published 2012Open the Tome
BTEC Cyntaf Gwasanaethau Cyhoeddus Lefel 2Debra Grey, Tracey Lilley, Lizzie Toms, John Vause, Lynwen Rees Jones · First published 2012Open the Tome
BTEC Level 3 National Public Services Student Book 2Debra Gray, Tracey Lilley, Elizabeth Toms · First published 2010Open the Tome
