ESHBAEVA, ULBOSIN, DILAFRUZ SAFAEVA, DILOBAR ZUFAROVA, and BARNO BALTABAEVA. “IR SPECTROSCOPIC ANALYSIS OF BIAXIALLY DIRECTED POLYPROPYLENE AND POLYETHYLENE POLYMER FILMS”. Scientific and Technical Journal of Namangan Institute of Engineering and Technology 8, no. 3` (September 30, 2023): 110–115. Accessed October 23, 2024. http://niet.uz/index.php/nj/article/view/288.