@book{601721,
	author = {Syeda Mehwish Hina Bukhari (NUST201361500MCES64113F) 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 = {Islamabad :},
	year = {2016},
	address = {USPCAS-E, NUST,}
}