1. Industry 4.0: The Fourth Industrial Revolution – Guide to Industries 4.0 (2016), available at https://www.i-scoop.eu/industry-4-0/
2. WHO, WHO Coronavirus (COVID 19) (2020), available at https://vid19.who.int
3. An Introduction to IoT Applications in Education – IoT for all (2020), available at https://www.iotforall.com/introduction-iot-applications-in-education
4. ESL Teachers’ Intention in Adopting Online Educational Technologies during COVID-19 Pandemic
5. Allen I. E., and Seaman J. with Poulin, R. and Straut T. T., Online report card: Tracking online education in the United States, (Babson Survey Research Group, Massachusetts, February 2016), see https://files.eric.ed.gov/fulltext/ED572777.pdf