S. A. V. Paul (Sr.), J. Joseph, S. A. V. Paul (Jr.), C. McDonald, O. K. Solomon, and S. Rambhajan, “The Psychology of Adult Learning: Why Flexible Online Universities Achieve Higher Retention and Completion Rates”, Integr. J. Res. Arts Humanities, vol. 5, no. 4, pp. 209–211, Jul. 2025.