1 Subjects: “...Legitimation Code Theory...”

2 Subjects: “...Philosophy & theory of education...”

3 Subjects: “...integrative theory...”

4 Subjects: “...theory of social change, cultural evolution, and human development...”

5 Subjects: “...theory...”

6 Subjects: “...theory of planned behavior....”

7 Subjects: “...grounded theory...”

8 Subjects: “...grounded theory...”