Ramin Ghaffari, Nikbakhsh Javadian 2024. Economic Assessment of Improper Performance Indicators and Pipeline Spill Intensity for Repair and Substitution (Case Study). The International Journal of Multiphysics. 18, 4 (Dec. 2024), 882 - 891. DOI:https://doi.org/10.52783/ijm.v18.1637.