I. Ismiyati, H. Retnawati, S. Suranto, H. Haryanto, M. Sholihah, and T. Tusyanah, “The readiness of prospective teachers based on online teaching competencies and learning activities in COVID-19 pandemic: A cluster analysis-based approach”, REiD, vol. 8, no. 2, pp. 127–139, Dec. 2022.