Sabur, Fatmawati, Purnamawati, Abdul Muis Mappalotteng, and Muhammad Yahya. 2023. “Indoor Navigation Design Uses Beacons to Detect Point Locations of Flight Service Users”. International Journal of Intelligent Systems and Applications in Engineering 11 (9s):25-33. https://ijisae.org/index.php/IJISAE/article/view/3091.