Julianto, A. M., Matanari, A. F., & Karepesian, S. Y. R. (2024). A Optimization of Direction Finder in Disclosing Cases of Threatening By Jatanras Unit, Criminal Research Unit, Surabaya City Police Office. Tanggon Kosala, 13(1), 20-31. https://doi.org/10.70526/tk.v13i1.1491