1. Caferra, R . (2011). Logique pour l’informatique et pour l’intelligence artificielle, Hermes Sciences Publications, Paris, France.
2. Elflein, J. (2020 a). COVID-19 cases, recoveries, deaths among most impacted countries as of April 30, 2020, Statista, New York, USA, www.statista.com/statistics/1105235/coronavirus-19-cases-recoveries-deaths-most-affected-countries-worldwide/, consulted: 01/05/2020.
3. Elflein, J. (2020 b). Number of (COVID-19) confirmed and death cases in South Korea from January 20 to April 30, 2020, Statista, New York, USA, www.statista.com/statistics/1098721/south-korea-coronavirus-confirmed-and-death-number/, consulted: 01/05/2020.
4. Elflein J. (2020 C). COVID-19 deaths worldwide as of April 30, 2020, Statista, New York, USA, www.statista.com/statistics/1093256/novel-coronavirus-2019-ncov-deaths-worldwide-by-country/, consulted: 01/05/2020.
5. Lisboa, P. J. Tatak A F. (2006). The use of artificial neural networks in decision support in cancer: a systematic review, Neural Networks, Vol. (19), No. (04), pp 408-415.