Interviews (2) Entrevistas (2) Programs (1) Labor (1) Certification (1) Tomography, Emission (1) Temporary employment (1) Strategy (1) Solidarity (1) Sociology (1) Saving and investment (1) Research (1) Reformation (1) Property (1) Population (1) Petroleum (1) Id (Psychology) (1) Housing (1) Gas distribution (1) Natural gas (1) Floods (1) Energy development (1) Disasters (1) Business enterprises (1) Attention (1) Programas (1) Tomografía por emisión (1) Estudios (1) Redes de distribución de gas (1) Factores (1)