Karimi, Elnaz, Davoudi, Rasoul,  Karami Pour Shamsabadi, Mohammad Reza. Application of Structural Equation Modeling (SEM) in Analyzing Human Resource Productivity; A Case Study of the Welfare Organization. Quarterly Journal of Quantitative Researches in Management. 2026;16(63):-. doi:https://doi.org/10.82244/qrm.2026.1207620