GWASG: Gwerthuso Asesu'r Gymraeg a Chymraeg Ail Iaith yn y Cwricwlwm Cenedlaethol CA 1, 2 a 3 = ENCAW: Evaluation of National Curriculum Assessment of Welsh and Welsh Second Language KS 1, 2 and 3.
Adroddiad GWASG = GWASG report. Published by School of Education, University of Wales, Bangor in 1993. Publication and catalogue information, links to buy online and reader comments.