Ayu Tika Sari, L.; Taruno Muryanto, Y. .; Sri Ciptorukmi, A. . The Legal Certainty Of Waarmerking In Notarized Sale And Purchase Agreements: A Case Analysis Of Civil Proceedings (Case Research: District Court Decision No. 354/PDT.G/2019/PN.SDA). IJERSC 2024, 5, 351-355.