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WikiPedia: Than_đá http://onlinelibrary.wiley.com/doi/10.1111/ecoj.12... http://www.anl.gov/PCS/acsfuel/preprint%20archive/... //dx.doi.org/10.1111%2Fecoj.12522 http://noharm.org/lib/downloads/climate/Coal_Liter... http://www.psr.org/news-events/press-releases/coal... http://www.rmi.org/RFGraph-health_effects_from_US_... //www.worldcat.org/issn/1468-0297 http://www.ecc-hcm.gov.vn/?menu=81&submenu=81&deta... https://www.eia.gov/energyexplained/index.cfm?page... https://web.archive.org/web/20100528174436/http://...