[Changes in working disposition of pupils in the 1st grade of elementary school during the school year]. [electronic resource]

Name: [Changes in working disposition of pupils in the 1st grade of elementary school during the school year]. [electronic resource]
Author: Polus-Szeniawska, E

[Changes in working disposition of pupils in the 1st grade of elementary school during the school year]. [electronic resource] — المؤلف: Polus-Szeniawska, E — 1977

المؤلف: Polus-Szeniawska, E
النشر: 1977
الوصف: 507-13 p.
الموضوعات: Adolescent؛ Age Factors؛ Child؛ Efficiency؛ Female؛ Humans؛ Male؛ Mental Fatigue