Allwedd mathemateg TGAU.
Baker, David,1961-
Qualifications, Curriculum & Assessment Authority for Wales.
University of Wales, Aberystwyth.Centre for Educational Studies.
Aberystwyth : Canolfan Astudiaethau Addysg,
2004.
Cyhoeddwyd yn gyntaf = Originally published: Stanley Thornes, 1998.
Mathematics
Mathematics