@book{4421,
	author = {GSMA (Organization)‏},
	title = {2017 Mobile Industry Impact Report: Sustainable Development Goals},
	publisher = {GSMA},
	year = {2017},
	url = {https://www.gsma.com/betterfuture/wp-content/uploads/2020/05/2017-09-18-SDG-Impact-Report.pdf},
}