Abdullah, H., Ramadan, A. (2021). The Structural Foundations for Psychological Capital and its Role in the Constructive Foundation of Intellectual Capital-Analytical research for a sample opinions of engineers in the North Oil Company - Salah Al-Din branch. ALNAHRAIN JOURNAL FOR ENGINEERING SCIENCES, 40(129), 203-222. doi: 10.33899/tanra.2021.129396.1072
Hatem A. Abdullah; Abdulftah H. Ramadan. "The Structural Foundations for Psychological Capital and its Role in the Constructive Foundation of Intellectual Capital-Analytical research for a sample opinions of engineers in the North Oil Company - Salah Al-Din branch". ALNAHRAIN JOURNAL FOR ENGINEERING SCIENCES, 40, 129, 2021, 203-222. doi: 10.33899/tanra.2021.129396.1072
Abdullah, H., Ramadan, A. (2021). 'The Structural Foundations for Psychological Capital and its Role in the Constructive Foundation of Intellectual Capital-Analytical research for a sample opinions of engineers in the North Oil Company - Salah Al-Din branch', ALNAHRAIN JOURNAL FOR ENGINEERING SCIENCES, 40(129), pp. 203-222. doi: 10.33899/tanra.2021.129396.1072
Abdullah, H., Ramadan, A. The Structural Foundations for Psychological Capital and its Role in the Constructive Foundation of Intellectual Capital-Analytical research for a sample opinions of engineers in the North Oil Company - Salah Al-Din branch. ALNAHRAIN JOURNAL FOR ENGINEERING SCIENCES, 2021; 40(129): 203-222. doi: 10.33899/tanra.2021.129396.1072