Books by Robat Powell
Cyfres Lleisiau
Cyfres Lleisiau
Cyfres Tonic 5
Helynt haf
Haearn Iaith
Haearn Iaith
Survey of Welsh oracy, 1989, a
Survey of Welsh oracy, 1989, among first and second language pupils age 13+
Survey of Welsh reading and wr
Survey of Welsh reading and writing, 1988, among first and second language pupils aged 13+
Arolwg siarad Cymraeg 1985
Arolwg siarad Cymraeg 1985
Welsh reading survey, 1984
Welsh reading survey, 1984
Welsh speaking survey, 1985
Welsh speaking survey, 1985
Survey of writing among 10-11
Survey of writing among 10-11 year old first language Welsh pupils
Adroddiad ar yr arolwg sgiliau
Adroddiad ar yr arolwg sgiliau siarad ymhlith dysgwyr Cymraeg 10-11 oed, 1981
Report on the survey of listen
Report on the survey of listening comprehension skills among 11 year-old pupils learning Welsh as a second language, 1980