Zamora, J. T. and Zamora, J. J. M. . (2022) “21st Century Teaching Skills and Teaching Standards Competence Level of Teacher”, International Journal of Learning, Teaching and Educational Research, 21(5), pp. 220–238. Available at: https://www.ijlter.myres.net/index.php/ijlter/article/view/1324 (Accessed: 10 September 2026).