54 of 2010 on the purchase of goods / services, the government requires that what is used be in accordance with Indonesian legislation with national interests, and further requires, in the procurement directive established by the state or organization PPLN, international law with different provisions more favorable to the country. “The Government of the Republic of Indonesia concludes international agreements with one or more countries, international organizations or other parties to international law within the framework of the agreement and the parties are obliged to implement such agreements in good faith” The classification of international agreements in accordance with Law No. 24 of 2000 on international agreements must be carried out by law. the shelf between the borrower and the lender who governs its rights and obligations. .