@book{6435,
	author = {Conferencia de las Naciones Unidas sobre Comercio y Desarrollo‏ and Naciones Unidas‏},
	title = {COVID-19 and e-commerce : a global review},
	publisher = {United Nation Publications, },
	year = {2021},
	address = {Geneva :},
	url = {https://unctad.org/system/files/official-document/dtlstict2020d13_en.pdf},
}