Jaafar Ali, M., ملاک, Muhamed Nuri, S., صایغن, Muhamed Rajab, S. and شنای (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), pp. 201–215. doi: 10.33899/edusj.2019.126025.1016.