TY - JOUR AU - Mohammadzadeh-Sagha, Poriya AU - Ebrahimi, Ahmad AU - lotfi, maryam TI - Optimization of costs, time and transportation system's reliability in a four-echelon supply chain network; using mixed integer linear programming JO - Management Accounting VL - 11 IS - 38 SP - 1 EP - 14 PY - 2018 DO - ER -