↑Taylor, Isaac (1883). History of the Alphabet: Aryan Alphabets, Part 2. Kegan Paul, Trench & Co. পৃষ্ঠা. 324, 333. ISBN978-0-7661-5847-4. https://archive.org/stream/alphabet00unkngoog#page/n348/mode/2up/. "... In the Kutila this develops into a short horizontal bar, which, in the Devanagari, becomes a continuous horizontal line ... three cardinal inscriptions of this epoch, namely, the Kutila or Bareli inscription of 992, the Chalukya or Kistna inscription of 945, and a Kawi inscription of 919 ... the Kutila inscription is of great importance in Indian epigraphy, not only from its precise date, but from its offering a definite early form of the standard Indian alphabet, the Devanagari ..."
↑Salomon, Richard (1998). Indian epigraphy: a guide to the study of inscriptions in Sanskrit, Prakrit, and the other Indo-Aryan languages. South Asia research. প্ৰকাশক Oxford: Oxford University Press. পৃষ্ঠা. 39–41. ISBN978-0-19-509984-3.
↑Himelfarb, Elizabeth J. "First Alphabet Found in Egypt", Archaeology 53, Issue 1 (January/February 2000): 21.
↑Daniels, P.T. (January 2008). "Writing systems of major and minor languages". In B. Kachru. Language in South Asia. প্ৰকাশক Cambridge: Cambridge University Press. পৃষ্ঠা. 285–308. doi:10.1017/CBO9780511619069.017. ISBN9780521786539.
↑Masica, Colin (1993). The Indo-Aryan languages. পৃষ্ঠা. 143.