Perspective (2) Interviews (2) Research (2) Students (2) temps (durée) (1) enseignement (1) état (1) établissement scolaire (1) recherche (1) infrastructure (1) famille (1) éducation (1) point (1) public (1) Brésil (1) Ouest (1) Porto (1) Distrito do Porto (1) Instruction and study (1) Education (1) Employment (1) Causes (1) Workload (1) Breeding (1) Observations (1) Music (1) Songs and music (1) Music (1) Interviews (1) Observations (1)