Wahab, Siti Norida, Hoch Aun Khoo, Veera Pandiyan Kaliani Sundram, and Mohammad Annas. “Green Warehouse Practice: Critical Issues in Drone Technology Adoption”. Environment-Behaviour Proceedings Journal 8, no. 23 (March 28, 2023): 217–222. Accessed May 10, 2024. https://ebpj.e-iph.co.uk/index.php/EBProceedings/article/view/4441.