mohammad davoudi, amir hosein, Shami zanjani, Hanieh, Niknami, Mostafa, GHourchian, Nadergholi, Ghorchian, Nadergholi, Mohammad davoudi, Amir hosein. Providing a Model for Continuing the Use of E-learning in Work Environments (Case study: Headquarters of the State Tax Administration).  Quarterly Journal of Training and Development of Human Resources. 2019;5(17):29-54.