S. . Ali, S. . Khusro, A. Khan, I. Khan, and S. F. . Solheria, “An Insight of Smartphone-Based Lifelogging Research: Issues, Challenges, and Research Opportunities: Insight of Smartphone-Based Lifelogging Research”, PPASA, vol. 56, no. 3, pp. 1–16, Mar. 2021.