mostafa, i. e. h., & abu elnoor, a. e. (2000). the impact of information system on the planning practices in the developing countries, with special refrence to the sudan. university of khartoum.
Chicago-viite (17. p.)mostafa, imad eldien hassan, ja abu elgasim abu elnoor. The Impact of Information System on the Planning Practices in the Developing Countries, with Special Refrence to the Sudan. khartoum: university of khartoum, 2000.
MLA-viite (9. p.)mostafa, imad eldien hassan, ja abu elgasim abu elnoor. The Impact of Information System on the Planning Practices in the Developing Countries, with Special Refrence to the Sudan. university of khartoum, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.