Abdelraouf Atef Abdallah Abdelhafez, Dr. Mohamed Sameh Kamal El-Din Sameh. “Reassessment of Logistics Performance Efficiency Index (LPI) Criteria An Applied Study on the Logistics Center in the Suez Canal Axis Area”. Design Engineering, June 2021, pp. 1866 -85, http://www.thedesignengineering.com/index.php/DE/article/view/1891.