Prosiect a ariannwyd gan y Swyddfa Gymreig = Project funded by the Welsh Office.
Gwell meddwl, gwell mathemateg : cwrs mewn sgiliau meddwl, er mwyn cyflymu datblygiad mathemategol ym mlynyddoedd saith ac wyth by Howard Tanner. ISBN 0900944374. Published by University College of Swansea Department of Education in 1996. Publication and catalogue information, links to buy online and reader comments.