Echeverry-Vargas, L., Rojas-Reyes, N. R., & Estupiñán, E. (2017). Characterization of copper smelter slag and recovery of residual metals from these residues. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEcheverry-Vargas, Luver, Néstor Ricardo Rojas-Reyes, और Edgar Estupiñán. Characterization of Copper Smelter Slag and Recovery of Residual Metals from These Residues. Universidad Pedagógica y Tecnológica de Colombia, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEcheverry-Vargas, Luver, et al. Characterization of Copper Smelter Slag and Recovery of Residual Metals from These Residues. Universidad Pedagógica y Tecnológica de Colombia, 2017.
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