Improving Barcode Vision Scanning Process using a Drone-based Tracking PID Controller for Warehouse in Industry 4.0. Al-Khwarizmi Engineering Journal, [S. l.], v. 21, n. 2, p. 72–92, 2025. DOI: 10.22153/kej.2025.11.002. Disponível em: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/955. Acesso em: 24 jun. 2025.