Mulaj, Isa (2006): Redefining Property Rights with Specific Reference to Social Ownership in Successor States of Former Yugoslavia: Did it Matter for Economic Efficiency? Unpublished.
Mulaj, Isa (2009): Tax reform in emerging transition: Is Kosovo’s Government and NGOs mathematical economics rational? Unpublished.
Mulaj, Isa (2012): Terminology of economics in Albanian: Current state, problems and tasks. Unpublished.
Mulaj, Isa (2012): The geopolitics in the spheres of influence, domination, and overrule: towards a new world order or disorder? Unpublished.
Mulaj, Isa (2009): Trade regimes, investment promotion and export prospects in the Western Balkans. Published in: Universum Journal , Vol. 3, No. 2 (June 2009): pp. 221-244.