The means of law harmonization is a very popular topic discussed by law scholars and business practitioners. The \ud means of law harmonization through the substantive rules of the law of international trading is regarded efficient\ud to prevent conflicts among systems of law which are subscribed by each country. The main goal of law\ud harmonization is to look for homogeneity from fundamental principles through all of systems of law available\ud (which will be harmonized). CISG in arranging the contract is viewed from the principle of consensus so that the\ud absence of the things will not affect the validity of the contract. CISG does not arrange the relationship of law\ud between the validity of a covenant and its implications. The contr...