Nadia Sari Putri and By Tri Agung Nusantara Kr. J. Tompong (2025) “Classroom Action Research as a Means of Improving Teacher Professionalism and Learning Quality in the Digital Age”, Gateway for Understanding Research in Education , 1(1), pp. 39–47. Available at: http://gpijournal.com/index.php/guru/article/view/211 (Accessed: 4 September 2025).