Ajie, Baskoro. “Quantifying the Impact of Industry 4.0 Technologies on Leather Processing Efficiency: A Meta-Analysis”. Natural Sciences Engineering and Technology Journal 4, no. 2 (August 22, 2024): 308-320. Accessed March 22, 2026. https://www.nasetjournal.com/index.php/nasetjournal/article/view/54.