Suratmi, S., Supriatna, N., Sopandi, W., & Wulan, A. R. (2022). Lectures during the COVID-19 pandemic using the Education for Sustainability Development Oriented RADEC learning model. Cypriot Journal of Educational Sciences, 17(9), 3478–3489. https://doi.org/10.18844/cjes.v17i9.7125