xmlns:atom="http://www.w3.org/2005/Atom"

  1. Testun rhagarweiniol

  2. 1.Enwi, cychwyn a chymhwyso

  3. 2.Dehongli

  4. 3.Amodau Rhagnodedig

  5. 4.Cyfnod Perthnasol

  6. 5.Costau gorchymyn rhianta

  7. Llofnod

  8. Nodyn Esboniadol