K. J. Looi, A. H.-L. Lim, and F.-F. Chua, “The Influence of After-School Activity Participation and Social-Emotional Skills on Psychological Well-Being Among Adolescents: Findings from Three Cities Participating in the OECD SSES 2019 ”, JCLC, vol. 6, no. 2, pp. 342–362, Jul. 2026.