CCelwydd GolauCelwydd Golaude Arthur ThomasMateriasAnecdotesWelsh wit and humorHumorEdiciones (1)Celwydd Golau (1999)Gwasg Carreg Gwalch · wel · ISBN 9780863815942Más obras de Arthur ThomasGemstonesPPMI Certified Associate in Project Management (CAPM) OfficiaPMI Certified Associate in Project Management (CAPM) Official Cert GuideAABC, y Bysiau a'r Haka Cymraeg!ABC, y Bysiau a'r Haka Cymraeg!
PPMI Certified Associate in Project Management (CAPM) OfficiaPMI Certified Associate in Project Management (CAPM) Official Cert Guide
