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Muhammad Hakimi bin Mohd Nashron, Shah Rizailli bin Mukhtar, Ustaz Haji Abdullaah bin Feisal. DEVELOPMENT OF HAJJ & UMRAH HEARTBEAT, HEART RATE AND BODY TEMPERATURE USING MIOT. JET. 2022;10(1):216-220. Accessed June 14, 2026. https://ejournal.unikl.edu.my/index.php/jet/article/view/345