Impacto de Covid-19 en el escenario laboral empresarial 2020- 2021 di Martínez Cárdenas, Ana Graciela, Paredes Becerra, Rosalba, Seminario Internacional de Administración de Empresas : Megatendencias Siglo XXI (10º y 11º Encuentro de Egresados : 2021 Septiembre 1-3 : Universidad Pedagógica y Tecnológica de Colombia. Facultad Seccional Chiquinquirá)

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A FEW THEMES ABOUT EDUCATION IN THE LIBERAL SALVADORIAN PRESS (1870-1890); WOMEN AND WORKERS WITH A LAIC EDUCATIONAL BACKGROUND di Herrera Mena, Sajid Alfredo

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Occupations, ranks and kinship. Workers at the Santafé mint 1620- 1816 di Bonnett Vélez, Diana

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Special protection for workers in mattersof social security di Hernández-Montenegro, Mariah Angélica, Reyes-Martínez, Mónica Jimena

Soggetti: “...Labor law, social security, law, principle, workers...”

Study of the Quality of Work Life and the Collateral Effects of COVID-19 on Workers of Universities in the State of Sonora, Mexico di Quiroz Campas, Celia Yaneth, Hadar García, Esmeralda, Galván Corral, Alberto, Hinojosa Rodríguez, Carlos Jesús

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Eating in New Spain, privileges and regrets of society in the XVIII century di Quiróz, Enriqueta

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The Social Cost of the Republic: Defense System Workers in Cartagena de Indias, 1750-1850 di Solano D., Sergio Paolo

Soggetti: “...workers;...”