D. A. M. Lidinillah, B. Robandi, W. Wahyudin, and D. Dianasari, “Elementary teachers’s readiness to implement online learning during the covid-19 pandemic”, Prem. Educ. J. Pendidik. Dasar dan Pembelajaran, vol. 11, no. 2, pp. 172 – 190, Dec. 2021.