E. D. Wardihani, T. N. Sari, T. A. Setyawan, and H. W. Astuti, “Analysis of Propagation Characteristics in Unmanned Aerial Vehicle (UAV) System”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 13, no. 6, pp. 2354–2360, Dec. 2023.