Birbirso DT, Gerba TG. Questioning the Origin of Indo-European: A Comparative Evolutionary Analysis of Hittite and Cushitic (Oromo). IJSBAR [Internet]. 2015 Jan. 17 [cited 2024 May 5];19(2):250-8. Available from: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/3181