National Curriculum assessments results in Wales : non-core subjects Key Stage 3 = Canlyniadau asesiadau'r Cwricwlwm Cenedlaethol yng Nghymru : pynciau di-graidd Cyfnod Allweddol 3. ISBN 0750428023. Published by National Assembly for Wales in 2001. Publication and catalogue information, links to buy online and reader comments.