TI - Important factors affecting the transmission rate of COVID-19 in G20 and EU AU - KOCADAĞLI, O. AU - KÖSE, A.M. AU - GÖKMEN INAN, N. AU - ÖZER, E. AU - YAMAN KOCADAĞLI, A. AU - BOSTANCI, E. SO - Sigma Journal of Engineering and Natural Sciences 2022;40:208-218. DO - 10.14744/sigma.2022.00017