1 Subjects: “...reciprocal interview activity...”

2 Subjects: “...active power...”

3 Subjects: “...active learning...”

4 Subjects: “...Active learning / http://id.loc.gov/authorities/subjects/sh92000622...”

5 Subjects: “...activism...”

6 Subjects: “...activity-travel patterns...”

7 Subjects: “...active learning classrooms...”

8 Subjects: “...physical activity...”

9 Subjects: “...the short internet addiction test adapted to online sexual activities...”