Al-Rubaih, Mohammed Saif Mohammed, Effect of toplighting systems of UKM academic hall on daylighting quality and energy savings / Mohammed Saif Mohammed Al-Rubaih. - xxxi, 398 pages : chiefly colour illustrations ; 30 cm. Thesis (P.hD.) - Universiti Kebangsaan Malaysia, 2014. References : pages [326]-336. Subjects--Corporate Names: Universiti Kebangsaan Malaysia--Dissertations. Subjects--Topical Terms: Dissertations, Academic--Malaysia.Daylight.Interior lighting.Lighting--Environmental aspects.