Jaafar Ali, Malak, Saygin Muhamed Nuri, and Shany Muhamed Rajab. 2020. “Studying the Parameter Gradient Energy Coefficient of Polyethylene Glycol As a Function of Molecular Weight in Conjunction With Freed Contribution”. Journal of Education and Science (JES) 29 (2):201-15. https://doi.org/10.33899/edusj.2019.126025.1016.