Welsh Procurement Policy Note (WPPN) 002: Wales Procurement Specific Questionnaire (WPSQ) and its use for Goods, Services and Works Contracts
Nodyn Polisi Caffael Cymru (WPPN) 012: Canllaw i Awdurdodau Datganoledig Cymru ar Neilltuo Tendrau sydd o dan y Trothwy