Fuada, Syifaul, Trio Adiono, and Prasetiyo Prasetiyo. 2020. “Accuracy Improvement of RSSI-Based Distance Localization Using Unscented Kalman Filter (UKF) Algorithm for Wi-Fi Tracking Application”. International Journal of Interactive Mobile Technologies (iJIM) 14 (16):pp. 225-233. https://doi.org/10.3991/ijim.v14i16.14077.