Pambudi, Bimo, and Dyah Yustanti. “Position Of Operational Cooperation (KSO) Made Without Notary Deed In Civil Law System And How Responsible Towards Third Parties”. JURNAL HUKUM SEHASEN 11, no. 1 (March 20, 2025): 237 -. Accessed April 3, 2025. https://jurnal.unived.ac.id/index.php/jhs/article/view/8118.