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Y. Yuan and J. Zhao, 2013. Study on Supply and Demand of Cooking and Heating Energy in Rural Areas of Northern China. Journal of Applied Sciences, 13: 1449-1454.
DOI: 10.3923/jas.2013.1449.1454
URL: https://scialert.net/abstract/?doi=jas.2013.1449.1454
DOI: 10.3923/jas.2013.1449.1454
URL: https://scialert.net/abstract/?doi=jas.2013.1449.1454