Perspective (3) Perspectiva (3) Colombie (2) Environmental management (2) Environmental responsibility (2) Trials (2) Surveys (2) Solids (2) Refuse and refuse disposal (2) Photography, Artistic (2) Methodology (2) Environmental education (2) Actors (2) Gestión del medio ambiente (2) Gestión (2) Encuestas (2) Residuos (2) Educación ambiental (2) Estudio (2) Procesos (2) Metodología (2) Sólidos (2) Fotografía (2) Actores (2) Responsabilidad ambiental (2) nécessité (2) Labor (1) Vision (1) Possibility (1) Paper (1)