A. E. Putri, Y. Warmi, A. M. Nur Putra, and .-. Zulkarnaini, “A Comparative Analysis of External Lightning Strike Protection Area Determined by Using Protection Angle and Rolling Sphere Methods”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 13, no. 1, pp. 203–210, Feb. 2023.