Amjad, Umer ; Khan, Nusair ; Ahmad ,Hammad SUN TRACKING AND INTEGRATION OF SOLAR ENERGY INTO CONVENTIONAL UPS SYSTEM Umer Amjad ; Nusair Khan ; Hammad Ahmad - Islamabad : SEECS - NUST, 2018. - 40 p. : ill. ; 30cm. a ISBN: Subjects--Topical Terms: Electrical (Electronics) Engineering. Dewey Class. No.: 621.3