@book{534731,
	author = {Bukhari, Syeda Mehwish Hina and Dr. Parvez Akhter},
	title = {Determination of performance and degradation rate of grid tied PV systems in Islamabad Pakistan using performance ratio, performance index, metered kwh methods and economic analysis /},
	publisher = {USPCAS-E - NUST,},
	year = {2016.},
	address = {Islamabad:}
}