Mobo, F. D., A. L. R. Garcia, and J. C. Talosig. “RETRACTION NOTICE TO ‘Challenges in Hyflex Learning in Zambales, Philippines’”. International Journal of Multidisciplinary: Applied Business and Education Research, Vol. 3, no. 10, Oct. 2022, pp. 2150-3, doi:10.11594/ijmaber.03.10.27.