CBAC Cemeg Ar Gyfer UG Ail Argraffiad (WJEC Chemistry for AS Level Student Book - 2nd Edition)Elfed Charles, Jonathan Thomas, Kathryn Foster, Lindsay Bromley, Peter Blake · First published 2021Open the Tome
WJEC Chemistry for AS LevelElfed Charles, Geoff Tuttle, Welsh Joint Education Committee Staff · First published 2020Open the Tome
CBAC UG Cemeg Canllaw Astudio Ac AdolyguElfed Charles, Kathryn Foster, Peter Blake · First published 2018Open the Tome
Eduqas Chemistry A Level Year 1 and AS Study and Revision GuidePeter Blake, Elfed Charles, Kathryn Foster · First published 2016Open the Tome
Eduqas Chemistry for A Level Year 1 and ASPeter Blake, Elfed Charles, Kathryn Foster · First published 2015Open the Tome
