AUTHOR=Akkaraputtapong Panya , Nguyen Hoa Thi Mai , Ngo Ha Thanh , Ngo Nga Thi Hang TITLE=A teacher leadership model validation for in-service teachers JOURNAL=Frontiers in Education VOLUME=10 YEAR=2025 URL=https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2025.1503997 DOI=10.3389/feduc.2025.1503997 ISSN=2504-284X