R. T. . Geduriagao and J. C. T. . Vibal, “The Relationship between Extemporaneous Speaking Skills and Academic Performance among Grade 11 HUMSS Students: A Basis for Intervention”, Int. J. Multidiscip. Appl. Bus. Edu. Res., vol. 6, no. 5, pp. 2226–2232, May 2025, doi: 10.11594/ijmaber.06.05.09.