Sari, Elistiana Wulan, et al. “The Existence of the Implementation of Academic Supervision of Principals in Improving the Personality Competencies of Early Childhood Teachers: A Case Study in the Context of Deep Learning”. Global Education Journal, vol. 3, no. 3, Dec. 2025, pp. 155-62, doi:10.59525/gej.v3i3.1187.