“Improving Barcode Vision Scanning Process Using a Drone-Based Tracking PID Controller for Warehouse in Industry 4.0”. Al-Khwarizmi Engineering Journal 21, no. 2 (June 1, 2025): 72–92. Accessed June 24, 2025. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/955.