The vowel a, i and e in Orkhon Inscriptions (Basen on the Tonyukun and Kül Tigin Inscriptions). EJPhSE [Internet]. 2020 Feb. 26 [cited 2026 Jul. 16];176(4):86-91. Available from: https://philart.kaznu.kz/index.php/1-FIL/article/view/2747