Giannoulas, Angelos, Antonios Kalamatianos, and Kalliopie Kounenou. “The Greek Version of the Blended Teaching Readiness Instrument (BTRI): Results of the Pretest Study and the Content Validation”. Online Learning 29, no. 1 (March 1, 2025). Accessed April 4, 2026. https://olj.onlinelearningconsortium.org/index.php/olj/article/view/4279.