1. A. Energy, Electricity System Improvements, 2015 (2016). http://www.energy.alberta.ca/index.asp
2. Weldu YW, Assefa G. Evaluating the environmental sustainability of biomass-based energy strategy: Using an impact matrix framework. Environmental Impact Assessment Review. 2016;60:75-82. DOI: 10.1016/j.eiar.2016.05.005
3. Weldu YW. Life cycle human health and ecosystem quality implication of biomass-based strategies to climate change mitigation. Renewable Energy. 2017;108:11-18. DOI: 10.1016/j.renene.2017.02.046
4. J. Deyette, B. Freese, Burning Coal, Burning Cash: Ranking the States that Import the Most Coal, Union of Concerned Scientists, 2010
5. Lockwood AH, Welker-Hood K, Rauch M, Gottlieb B. Coal’s assault on Human Health. Physicians for Social Responsibility Report; 2009