Wanida Simpol 2025. The Effects of Collaborative Research-Based Professional Coaching on the Professional Competence of Teachers and Educational Personnel: A Pilot Study in the Thai Context. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC). 2, 2 (Nov. 2025). DOI:https://doi.org/10.30587/umgeshic.v2i2.10885.