D73; H11; O12; O33; O35
D91, O12, Z12
I21 - Analysis of Education
O12, Q12, J16, D13
D91 - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision
G21; L26; O12; O16
C93;D03;D21;D83;D84;J64;O17;O12
O12, O13, O33, O55, Q12. Q16
D03, I20, I21, O12, C93
O12, I11, I12