Pereira da Silva, Jizreel, and Jizreel. “Proca Electrodynamics Approach to The Massive Photon”. Journal of Education and Science (JES) 33, no. 2 (June 1, 2024): 134–139. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18428.