Garcia, M. R. N.; Mayo, P. B.; Bagumbaran, C. G.; Buenaflor, M. S.; Buenaflor, G. A. B.; Mayo, M. B.; Ulie-Sultan, M. G.; Tejeros III, E. M.; Dela Cerna, M. G. B. Teachers’ Readiness, Professional Competence, and Career Advancement Experiences under the Expanded Career Progression System Among Public Elementary School Teachers in Alamada, Cotabato: An Explanatory-Sequential Mixed-Methods Study. World J. Sustain. Adv. Multidiscip. 2026, 1 (2), 267-281. https://doi.org/10.65339/wjsam.V1.I2.24.