M. Zeinalnezhad, F. Sepehri, M. Haji Molana, T. Pourrostam, A. Gholamzadeh Chofreh, J. Klemes Jiri, A. Goni Feybi, Identification of Performance Evaluation Indicators for Health, Safety, Environment, and Ergonomics Management Systems, Chemical Engineering Transactions. 67 (2018) 451-456. doi:10.3303/CET1867076.