1. ACAPS. (2020, November). COVID-19 government measures dataset. Retrieved from https://www.acaps.org/covid-19-government-measures-dataset
2. Adegboyega, A. (2020, November). Coronavirus: Many households lack enough water, soap for handwashing – NBS. Retrieved from https://www.premiumtimesng.com/coronavirus/403003-coronavirus-many-households-lack-enough-water-soap-for-handwashing-nbs.html
3. Aklekar, R. (2020, November). COVID-19: Mumbai needs more bus services for the public, can 1,500 school buses chip in? Retrieved from https://www.mid-day.com/articles/covid-19-mumbai-needs-more-transport-facility-can-1-500-school-buses-chip-in/22932241
4. European airlines′ strategic responses to the COVID-19 pandemic (January-May, 2020)