Codera G, Diacor CC, Empacis HJ, Villarias MA, Villila S. Lived Experiences of Secondary Teachers in Teaching the 21st -Century Learners. Int. Multidiscip. J. Res. Innov. Sustain. Excell. . 2026;3(8):90-98. Accessed August 25, 2026. https://risejournals.org/index.php/imjrise/article/view/1585