21119 labor law dispute / sick leave/ calculation of sick leave Labor dispute Proclamation 42/85 volume 4 sick leave Federal supreme court of Ethiopia cassation decisions leave (labor) labor law dispute sick leave calculation of sick leave የህመም ፈቃድ ጊዜ አቆጣጠር አዋጅ ቁ. 42/85 አንቀፅ (2) Cassation 21119