Ahmed, H. A; Ahmed, G. T; Abd El-Megeed, Engy, M. "THE COUTEM PORAWY SOCIAL AND PHYSICAL CHALLENGES THAT FACES THE POLICE MEN AND POLICE WOMEN AND ITS IMPACTS ON THE SECURITY PERFORMANCE STUDY CONCINTRATED ON DIFFERENT INVIROMENTS", Journal of Environmental Science, 38, 2, 2017, 161-179. doi: 10.21608/jes.2017.19799