Trails (1) Students (1) Schools (1) School children (1) Nursery schools (1) Mathematical ability (1) Infrastructure (Economics) (1) Human capital (1) Factor analysis (1) Elementary schools (1) Education and state (1) Education (1) Attachment and garnishment (1) Ability (1) Estudios (1) Cantidad (1) Evidencia (1) Infraestructuras (Economía) (1) Análisis factorial (1) Escuelas primarias (1) Estudio (1) Estudiantes (1) Escuelas infantiles (1) Embargo (1) Escolares (1) Educación (1) Recursos humanos (1) Centros docentes (1) Caminos (1) Aptitudes matemáticas (1)