Norarzemi, Ummi Annisa, Mohd Shamian Zainal, Omar Abu Hassan, Mohd Hakimi Zohari, Danial Md Nor, Shipun Anuar Hamzah, and Masnani Mohamed. 2020. “Development Of Prototype Smart Door System With IoT Application”. Progress in Engineering Application and Technology 1 (1): 245-56. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/259.