Students (2) Health (2) College students (2) puits (1) temps (durée) (1) enseignement (1) développement social (1) établissement scolaire (1) séparation des masses (physique) (1) lumière (1) santé (1) éducation (1) programme d'études (1) Education (1) Scores (1) Value (1) Time (1) Teaching (1) Tallies (1) Statistics (1) Sampling (1) Progress (1) Perspective (1) Performance (1) Perception (1) Nursing (1) Months (1) Mexicans (1) Light (1) Lifestyles (1)