Anugrah, Thirafi Wian, Andrian Rakhmatsyah, and Aulia Arif Wardana. “Non-Line of Sight LoRa –Based Localization Using RSSI-Kalman-Filter and Trilateration”. International Journal on Information and Communication Technology (IJoICT) 6, no. 2 (July 2, 2020): 52-63. Accessed February 27, 2021. https://socj.telkomuniversity.ac.id/ojs/index.php/ijoict/article/view/495.