Serge Obolensky, Debebow Zelelie, and Mulugeta Andualem, Amharic Basic Course, Volume 2 (1964)
“ Drills 545 Narrative 546 Unit 59 Basic Sentences 548 Drills 551 Narrative 552 Unit 60 Basic Sentences - Part I 554 Part II 555 Note 60.1 /b (ə) -/ prefixed to Perfective and Time Counters 557 60.2 ”
