Llyfryddiaeth:
- Brockett, Oscar G. (1964), The Theatre (New York: Rineheart & Winston).
- Camus, Albert (2005), The Myth of Sisyphus, cyfieithiad O’Brien, Justin (London: Penguin).
- Carter, Lawson A. (1977), Zola and the Theater, adargraffiad (Westport, CT: Greenwood Press).
- Hostie, Raymond (1952), Religion and the Psychology of Jung (London: Harvill).
- Ibsen, Henrik (1920), Dychweledigion, cyfieithiad Jones, T. Gwynn (Abertawe: Morgan & Higgs).
- Ibsen, Henrik (2003), Tŷ Dol, cyfieithiad Siôn Eirian (Caerdydd: Coleg Brenhinol Cerdd a Drama Cymru).
- Jones, E. J. Eurfyl (1958), Jung, cyfres Y Meddwl Modern (Dinbych: Gwasg Gee).
- Jones, John Gwilym (1976), Ac Eto Nid Myfi (Dinbych: Gwasg Gee).
- Jones, John Gwilym (1958), Dwy Ddrama (Dinbych: Gwasg Gee).
- Jones, John Gwilym (1964), Hanes Rhyw Gymro (Liverpool: Cymdeithas y Ddrama Gymraeg Coleg y Brifysgol Bangor).
- Jones, John Gwilym (1931), ‘Nychdod’, Y Ford Gron, 1 (8), Mehefin, tt. 12–13.
- Jones, John Gwilym (1971), Pedair Drama (Dinbych: Gwasg Gee).
- Jones, John Gwilym (1946), Y Goeden Eirin (Dinbych: Gwasg Gee).
- Jones, John Gwilym (1963), Y Tad a’r Mab (Aberystwyth: Gwasg y Glêr).
- Jones, R. M. (1975), ‘Easily Freudened’, yn Jones, R. M. (gol.), Llenyddiaeth Gymraeg 1936–1972 (Llandybïe: Christopher Davies), tt. 249–58.
- Jung, C. G. (1959), The Archetypes and the Collective Unconscious (London: Routledge).
- Lewis, William R. (1994), John Gwilym Jones, cyfres Writers of Wales (Cardiff: University of Wales Press).
- Meier, C. A. (1977), Personality: The Individuation Process in Light of C. G. Jung’s Typology, cyfieithiad Roscoe, David N. (Einsiedeln, Switzerland: Daimon).
- Morgan, Derec Llwyd (1974), ‘Y Goeden Eirin’, yn Thomas, Gwyn (gol.), John Gwilym Jones: Cyfrol Deyrnged (Abertawe: Christopher Davies), tt. 98–112.
- Morgan, Mihangel, ‘Rhai themâu, motiffau a chymeriadau yng ngwaith John Gwilym Jones’, traethawd PhD, Prifysgol Aberystwyth, Aberystwyth, 1996.
- Richter, Virginia (2011), Literature After Darwin: Human Beasts in Western Fiction, 1859–1939 (Hampshire: Palgrave Macmillan).
- Rowlands, John (1988), John Gwilym Jones, cyfres Llên y Llenor (Caernarfon: Gwasg Pantycelyn).
- Rowlands, John (1975), ‘John Gwilym Jones’, yn Rees, D. Ben (gol.), Dyrnaid o Awduron Cyfoes (Pontypridd: Cyhoeddiadau Modern Cymreig), tt. 153–76.
- Rowlands, John (2005), John Gwilym Jones: Amrywiadau Enigmatig (Bangor: Adran y Gymraeg Prifysgol Cymru Bangor).
- Stephens, Elan Closs (1998), ‘A Century of Welsh Drama’, yn Johnston, Dafydd (gol.), A Guide to Welsh Literature (Cardiff: University of Wales Press), tt. 233–70.
- Stephens, Elan Closs (1988), Y Canol Llonydd: Astudiaethau Theatr Cymru 5 (Cricieth: Cymdeithas Theatr Cymru).
- Styan, J. L. (1981), Modern Drama in Theory and Practice: Realism and Naturalism, Cyfrol 1 (Cambridge: Cambridge University Press).
- Thomas, Gwyn (1970), ‘Holi John Gwilym Jones’, Mabon, 1 (3), haf, 12–18.
- Thomas, R. J. (gol.) (1950–1967), Geiriadur Prifysgol Cymru (Caerdydd: Gwasg Prifysgol Cymru).
- Tomos, G., ‘Astudiaeth o Ddramâu John Gwilym Jones’, traethawd MA, Prifysgol Bangor, Bangor, 1979.
- Wilson, E., a Goldfarb, A. (2004), Living Theatre: A History, 4ydd argraffiad (Boston: McGrav-Hill.