Estimating the Parameters of Exponential-Rayleigh Distribution for Progressively Censoring Data with S- Function about COVID-19. Baghdad Sci.J [Internet]. 2024 Feb. 1 [cited 2024 May 13];21(2):0496. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/7963