Knauer, Georg Nicholaus (2010). „The Earliest Vocabulary of Romani Words (c. 1515) in the Collectanea of Johannes ex Grafing, a student of Johannes Reuchlin and Conrad Celtis”. Romani Studies (journal). 20 (1): 1—15. S2CID170292032. doi:10.3828/rs.2010.1.
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, ур. (2016). „кумански”. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
Knauer, Georg Nicholaus (2010). „The Earliest Vocabulary of Romani Words (c. 1515) in the Collectanea of Johannes ex Grafing, a student of Johannes Reuchlin and Conrad Celtis”. Romani Studies (journal). 20 (1): 1—15. S2CID170292032. doi:10.3828/rs.2010.1.
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, ур. (2016). „кумански”. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.