C90 C91 D63 D90 H23
C91, D63, D91
D03; D11; D83; C91
C91, C93, I21, I24, I30, I38, J24
C91, G11, G41
C91, D83, D91, G11, G41
C91; C92; C71; D71; H41
C91, D82, H57, M42, Q56
C91, C92, D83, D91, M54
and Effects of Psychological, Emotional, Social, and Cognitive Factors. I21 — Analysis of Education.