1.
Nur Fatehah MA, Alfindana D, Dermawan B. Design and Development of a Running Speed Timer Device Using a Microcontoller-Based Internet of Things (IoT) System for Elementary Schools. JIOK [Internet]. 2025 Dec. 30 [cited 2026 Apr. 4];1(1):42-57. Available from: https://ejournal.ump.ac.id/jiok/article/view/401