1 Subjects: “...structural equations...”

2 Subjects: “...Volterra-type fractional integro-differential equation...”

3 Subjects: “...system of ordinary differential equations...”

4 Subjects: “...partial integro-differential equation...”

5 Subjects: “...PLS-SEM (partial least square structural equation modeling)...”

6 Subjects: “...PLS-SEM (partial least square structural equation modeling)...”