1. Peninsular Center for Humanities and Social Sciences, Nacional Autonomous University of Mexico. Ex Sanatorio Rendón Peniche, Calle 43 s/n entre 44 y 46, col. Industrial, C.P. 97150, Mérida, Yucatan, México
2. Independant Researcher, Calle 5 num. 536 por 54 y 66, Residencial Pensiones 4ta etapa, C.P. 97217 Merida, Yucatan, Mexico