@book{23516,
	author = {Tanveer Ahmad (16609) },
	title = {Temporal and spatial variations in tec using gnss network of Pakistan during the period of 2015-16},
	publisher = {(unpublished) },
	year = {2017},
	address = {Islamabad },
	note = {Submitted in fulfillment of the requirements for the degree of Master of Philosophy in Physics to the faculty of Basic Sciences and Humanities.}
}