@book{169969,
	author = {Pérez Chávez, José and Fol Olguín, Raymundo},
	title = {Ley Federal del Trabajo y Leyes de Seguridad Social 2021},
	publisher = {Tax Editores,},
	year = {2021},
	address = {Ciudad de México:},
	url = {https://vlex.com/source/33556}
}