Aifah, S. N., Budihantho, M. H., & Risal, S. (2026). Principal Leadership Strategy in Developing Teacher Professional Competence at SDN Tinggiran II.1, Barito Kuala Regency. International Journal of Integrative Sciences, 5(6), 771–784. https://doi.org/10.55927/ijis.v5i6.43