Mohamed Firdaus, M.F. and Kamarudin, K.- azhar (2022) “Development Prototype of Smart Mailbox That Send Email to User When Parcel Barcode Being Scanned”, Research Progress in Mechanical and Manufacturing Engineering, 3(1), pp. 839–847. Available at: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/6542 (Accessed: 12 March 2026).