Farouk, A., Refaat, M., Ahmed, S. (2019). 'Analytical Study Of Role Design In Raising The Operation Efficiency In Administrative Buildings (Petro jet Administration Building – Fifth District) | دراﺳﮫ ﺗﺤﻠﯿﻠﯿﮫ ﻟﺪور اﻟﺘﺼﻤﯿﻢ ﻓﻰ رﻓﻊ ﻛﻔﺎءه ﺗﺸﻐﯿﻞ اﻟﻤﺒﺎﻧﻰ اﻷدارية (ﻣﺒﻨﻰ ﺑﺘﺮوﺟﯿﺖ – اﻟﺘﺠﻤﻊ اﻟﺨﺎﻣﺲ)', Engineering Research Journal (Shoubra), 40(1), pp. 117-131. doi: 10.21608/erjsh.2019.406889