“Choosing the Best Method for Estimating the Survival Function of Inverse Gompertz Distribution by Using Integral Mean Squares Error (IMSE)”. Journal of Economics and Administrative Sciences 28, no. 133 (September 30, 2022): 149–157. Accessed November 24, 2024. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/2405.