- CIA World Fact Book
- Earth Trends
- EBRD, Renewable Energy Country Profile Serbia and Montenegro
- EIA
- ENERDATA: World Energy Database
- ERRA Energy Regulators Regional Association
- Federal Statistical Office
- Government of Republic of Montenegro
- Government of Republic of Serbia
- INOGATE
- IPA Energy Consulting
- ManagEnergy
- Ministry of Economics of Republic of Montenegro
- Ministry of Environmental Protection and Physical Planning of Republic of Montenegro
- Office of Fossil Energy
- Oil industry "NIS Jugopetrol"
- Oil distributor "Beopetrol"
- Power Utility "Elektroprivreda Crne Gore"
- Power Utility "Elektroprivreda Srbije"
- Professional Magazine Tractors and Power Machines, 8(2003)3, Novi Sad, Serbia and Montenegro
- Serbian Energy Efficiency Agency
- Serbian Ministry of Mining and Energy
- Serbian Ministry of Science and Environmental Protection
- Trading Economics
- UNDP Serbia and Montenegro
- WFB
- World Information
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