Mae Welsh in Twelve Weeks yn gyflwyniad i eirfa hanfodol a phrif elfennau gramadeg ym maes dysgu Cymraeg.
Gwasg Carreg Gwalch, Gwasg Carreg Gwalch
Pepper, AdrianStanton, Eloise
3rd April, 2013
King, Gareth
3rd August, 2020
Press, Gwasg Prifysgol Cymru / University of WalesMorris, Delyth
17th June, 2010
