M. A. Kadirova, G. N. Sobirova, and S. S. Rakhimkhodzhaev. “Production Of Polypropylene Bags”. Texas Journal of Engineering and Technology 12 (September 28, 2022): 42–44. Accessed November 19, 2024. https://zienjournals.com/index.php/tjet/article/view/2386.