Al- Mayaahi, Sheimaa Shakir, and Zainab makee mahmood Albanaa. “Evaluation of the Optimal Investment Portfolio Insurance Strategy (OBPI)”. Tikrit Journal of Administrative and Economic Sciences, vol. 19, no. 61, 1, Mar. 2023, pp. 468-97, doi:10.25130/tjaes.19.61.1.25.