Pase, Ana, M Hermana, and Fahrel Clarusty. “A Review of the Principle of Freedom of Contract and Copyright Protection: A Juridical Analysis of Constitutional Court Decision No. 63/PUU-XIX/2021 Concerning Full Flat-Pay (Outright Sale) Agreements in the Music Industry”. JURNAL HUKUM SEHASEN 12, no. 2 (October 25, 2026): 1057-1064. Accessed October 29, 2026. https://jurnal.unived.ac.id/index.php/jhs/article/view/12436.