Cantina, J. M., E. S. Balbuena, J. G. R. Sarzuelo, A. B. Borja, and E. B. Columnas. “Bullying, Self-Esteem, and Speaking Proficiency: A Study on Marine Cadets”. Sprin Journal of Arts, Humanities and Social Sciences, vol. 4, no. 2, Mar. 2025, pp. 39-46, doi:10.55559/sjahss.v4i2.491.