Debora, Debora, Haposan Siallagan, and Jesella Ramayanti Nainggolan. “Legal Aspects of Copyright on Book Photocopying Business Activities”. LEGAL BRIEF 13, no. 2 (June 30, 2024): 317–325. Accessed July 26, 2026. https://legal.isha.or.id/index.php/legal/article/view/956.