15662 contract law/ interpretation of contract/ variation of contract Civil Code contract law volume 4 interpretation of contract variation of contract Federal supreme court of Ethiopia cassation decisions ውለታዎች ግልጽ በሆኑ ጊዜ ዳኞች ግልጽ ከሆነው በመራቅ የተዋዋዮች ፈቃድ ምን እንደነበር ለመተርጐም ስላለመቻላቸው የፍ/ብ/ህ/ቁ. 22981733 Cassation 15662
