Seh Bee Yan, and Fauziahanim Che Seman. 2022. “Integrated Outdoor and Indoor Tracking Through GPS, LTE and Wi-Fi Solution”. In Vol. 1 No. 1 (2019): Internet of Things: Tracking & Monitoring, Vol. 1 No. 1:49-56. Evolution of Information, Communication and Computing Systems. Penerbit UTHM. https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/466/chapter/27.