23339 Public service/ Employees of Custom Authority civil service custom law volume 4 Federal supreme court of Ethiopia cassation decisions Custom and Revenue authority የጉምሩክ ባለስልጣን ሰራተኞች የፌዴራል ገቢዎች ሚኒስቴር በሚያወጣው መመሪያ የሚተዳደሩ ስለመሆናቸው አዋጅ ቁ. 368/95 አንቀፅ 6(2)ለ Cassation 23339