El Sayed, M., Abd Alazim, M., Shaaban Samarra, M., El sayed, R. (2019). 'EFFECT OF THE EXTERNAL ENVELOPE PROCESSORS ON THE ENVIRONMENTAL PERFORMANCE OF THE SKYSCRAPERS', Journal of Al-Azhar University Engineering Sector, 14(50), pp. 371-381. doi: 10.21608/auej.2019.28489