14699 Tax law/ Income tax/ Business expenses volume 3 volume 2 tax law income tax business expenses Income tax regulation no 255/55 Federal supreme court of Ethiopia cassation decisions ገቢን ለመፍጠር የሚወጣን ወጪ በትክክለኛ ሰነድ እንዲረጋገጥ ህጉ ስለሚያስቀምጠው ሁኔታ ደንብ ቁጥር 258/55 አንቀፅ 29 Cassation decison no. 14699 '
