Thaweephawilai, Peerasan, Monthippa Uthansakul, Chutima Prommak, and Chitapong Wechtaisong. “Power Level Assignment and Base Station Placement Using Simulated Annealing for 4G-LTE Femtocell Networks in Multi-Floor Buildings”. Applied Science and Engineering Progress 13, no. 3 (July 21, 2020): 246–255. Accessed May 21, 2024. https://ph02.tci-thaijo.org/index.php/ijast/article/view/241544.