. (2012). A dynamic analysis of the problems emerging from the nonexistence of the project portfolio management system in project-based organizations. Iranian journal of management sciences, 7(27), 71–92.

. "A dynamic analysis of the problems emerging from the nonexistence of the project portfolio management system in project-based organizations", Iranian journal of management sciences, 7, 27, 2012, 71–92.

. (2012). 'A dynamic analysis of the problems emerging from the nonexistence of the project portfolio management system in project-based organizations', Iranian journal of management sciences, 7(27), pp. 71–92.

, "A dynamic analysis of the problems emerging from the nonexistence of the project portfolio management system in project-based organizations." Iranian journal of management sciences, 7 27 (2012): 71–92,

. A dynamic analysis of the problems emerging from the nonexistence of the project portfolio management system in project-based organizations. Iranian journal of management sciences. 2012;7(27):71–92 (In Persian).