xmlns:atom="http://www.w3.org/2005/Atom"
Testun rhagarweiniol
1.Enwi, cychwyn a diddymu
2.Dehongli
3.Gwneud taliadau cymhelliant
4.Y Taliad Cymhelliant Cyntaf
5.Yr Ail Daliad Cymhelliant
Llofnod
Nodyn Esboniadol