Soleh, Mokhamad, Fathur Rokhman, and Amir Mahmud. “Professional Development Barriers Of Teachers: A Qualitative Research”. Proceedings of International Conference on Science, Education, and Technology 11, no. 1 (August 28, 2025). Accessed August 29, 2025. https://proceeding.unnes.ac.id/ISET/article/view/4559.