Al-Rabassi خ. ع. ح., Alakhali و. ع. ا. and Khan م. م. ي. (2015) “The Quality of Internal Environment for the Drawing Halls of the Faculty of Engineering- University of Aden ‘Arch. Engg. Dept. as a Case Study’”, University of Aden Journal of Natural and Applied Sciences, 19(2), pp. 307–323. doi: 10.47372/uajnas.2015.n2.a06.