%0 Journal Article %A Saif, Mohammad Hasan, Fathi, Reza %T A Causal Model of Acceptance and Utilization to Virtual Learning among Staffs: The Role Task-Technology Fit, self- Efficacy and Subjective Norm %J Quarterly Journal of Training and Development of Human Resources %V 4 %N 12 %P 1-10 %D 2017 %R %U https://rimag.ir/fa/Article/29872