Dela Cruz , Marivic M., and Dr. Rainelda M. Blanco. 2026. “Master Teachers As Instructional Leaders Amidst the Challenges of 21st Century Teaching Learning”. Lunday: Research Journal of the Graduate School of Bulacan State University 5 (1):12. https://lunday.bulsu.edu.ph/index.php/lunday/article/view/87.