William Andrew Sectionardo. Konsep Efficient Breach dalam Hukum Perjanjian: Tinjauan Ekonomi atas Wanprestasi: Penelitian. pchukumsosial [Internet]. 2026 May 16 [cited 2026 Jun. 15];4(1):1079-91. Available from: https://pchukumsosial.org/index.php/pchs/article/view/276