Retnaningsih, Heni, and I Ketut Oka Setiawan. 2025. “Annulment of a Preliminary Sales Agreement Due to Formal Defect Through Reconvention: A Case Study of Decision Number 1263/Pdt.G/2023/PN Dps”. SIGn Jurnal Hukum 7 (1), 1-17. https://doi.org/10.37276/sjh.v7i1.418.