Esbonio Excel : gwneud y gorau o Microsoft Excel /
Harrison, Patricia(Writer on information technology)
Sarkar, Papia.
Davies, Rhiannon.
University of Wales, Aberystwyth.Centre for Educational Studies.
Aberystwyth : Y Ganolfan Astudiaethau Addysg,
2006.
Cyhoeddwyd yn wreiddiol = Originally published: Dunstable : Folens, 2002.
Microsoft Excel (Computer file)
Electronic spreadsheets