Tolong jelaskan mengenai Sumber kedua dari Guthlac dari Crowland

Cubitt, Catherine. "Memory and narrative in the cult of early Anglo-Saxon saints" The Uses of the Past in the Early Middle Ages, ed. Matthew Innes

Olsen, Alexandra. Guthlac of Croyland: a Study of Heroic Hagiography. Washington, 1981

Powell, Stephen D. "The Journey Forth: Elegiac Consolation in Guthlac B." English Studies 79 (1998), pp. 489–500

Roberts, Jane. "The Old English Prose Translation of Felix’s Vita Sancti Guthlaci" Studies in Earlier Old English Prose: Sixteen Original Contributions, ed. Paul E. Szarmach. Albany, 1986, pp. 363–379

Roberts, Jane. "An inventory of early Guthlac materials" Mediaeval Studies 32 (1970), pp. 193–233

Sharma, Manish. "A Reconsideration of Guthlac A: The Extremes of Saintliness". Journal of English and Germanic Philology 101 (2002), pp. 185–200

Shook, Laurence K. "The Burial Mound in 'Guthlac A'". Modern Philology 58, 1 (August 1960), pp. 1–10

Soon Ai, Low. "Mental Culturation in Guthlac B". Neophilologus 81 (1997), pp. 625–636

Roberts, Jane. "Guthlac of Crowland, a Saint for Middle England." Fursey Occasional Paper 3. Norwich: Fursey Pilgrims, 2009. 1–36