Sánchez Pazmiño, Daniel Hernán. «Immunizing the Economy: A Causality Discussion on Vaccines and Economic Recovery». X-pedientes Económicos 6, no. 14 (abril 27, 2022): 65–82. Accedido marzo 28, 2024. https://ojs.supercias.gob.ec/index.php/X-pedientes_Economicos/article/view/103.