Colombie (2) Research (2) Literature (2) Estudio (2) Literatura (2) Investigación (2) Programs (1) Violence (1) Trials (1) Teaching (1) Speeches, addresses, etc (1) Signs and symbols (1) Semiotics (1) Self (1) Scientists (1) Perspective (1) Mathematics (1) Life (1) Learning, Psychology of (1) Interest (1) Experience (1) Evaluation (1) Engineering (1) Education (1) Demonstrations (1) Criminals (1) Crime (1) Colombians (1) Programas (1) Sí mismo (1)