Shafighian, Homan, GHourchian, Nadergholi, Bagheri, Mehdi. “Identify the elements of a systematic model of competency-based training with a grounded  theory approach (Case study: Ports and Maritime Organization, Shahid Rajaee Port).”  Quarterly Journal of Training and Development of Human Resources, vol. 7, no. 26, 2020, pp. 1-22.