Natalisanto AI, Purwaningsih S. REFORMULATION OF GEOMETRIC OPTICS WITHIN THE FRAMEWORK OF ABELIAN U(1) GAUGE THEORY: A NOVEL APPROACH TO UNDERSTANDING LIGHT PROPAGATION. IPR [Internet]. 2025May24 [cited 2025May28];8(2):540-52. Available from: https://ipr.unram.ac.id/index.php/ipr/article/view/464