B. P. Mahapatra. Constitutional languages. Presses Université Laval,1989,p.389. ISBN 978-2-7637-7186-1.«Evidence of Old Oriya is found from early inscriptions dating from the 10th century onwards, while the language in the form of connected lines is found only in the inscription dated 1249 A.D.»
«Oriya language»(en anglès).Encyclopedia Britannica.[Consulta: 2 juliol 2020].«Oriya language, also spelled Odia, Indo-Aryan language with some 50 million speakers.»