Cuba (1) Rural extension (1) Vocational education (1) Trials (1) Research (1) Occupations (1) Education (1) Attachment and garnishment (1) Ability (1) Extensión agrícola (1) Embargo (1) Educación (1) Procesos (1) Profesiones (1) Investigación (1) Formación profesional (1) Aptitudes (1)