Faint o arian sydd wedi ei wario gan adran y Gweinidog ar hysbysebu yn y 12 mis diwethaf?
Wedi'i ateb gan Gweinidog yr Economi | Wedi'i ateb ar 13/04/2023
I will write to you as soon as possible with a substantive response and a copy of the letter will be published on the internet.