Shanay Rajab Hasan, Saygin M. Nuri. Studying The Characteristic Parameters and External Freedom Degree of Polyethylene in different Molecular Weights By Hole Theory. Tikrit J. Pure Sci. [Internet]. 2020 Dec. 18 [cited 2025 Jun. 18];25(5):78-82. Available from: https://tjpsj.org/index.php/tjps/article/view/294