Lewis, H 2025, Briefing Paper - Looking beyond ARFOR: economic development strategies and the Welsh language. Prifysgol Aberystwyth | Aberystwyth University.

Lewis, H 2025, Looking beyond ARFOR: economic development strategies and the Welsh language. Prifysgol Aberystwyth | Aberystwyth University.

Lewis, H 2025, Papur Briffio - Tu Hwnt i ARFOR: strategaethau datblygu economaidd a’r Gymraeg. Prifysgol Aberystwyth | Aberystwyth University.

Lewis, H 2025, Tu hwnt i ARFOR: strategaethau datblygu economaidd a’r Gymraeg.

Royles, E, Jones, R & Lewis, H 2024, Adroddiad ar ddulliau asesu hyfywedd iaith | Methods of Assessing Linguistic Vitality Report. Prifysgol Aberystwyth | Aberystwyth University. 10.20391/605eb48c-05e5-44bc-96c5-83394bce046c