Romchat Chairaksa และผู้แต่งคนอื่นๆ. (2005) Recovery of gold and silver in secondary slag from gold refining process by co-precipitation with metal hydroxides. Chulalongkorn University:ม.ป.ท.Romchat Chairaksa และผู้แต่งคนอื่นๆ. 2005. Recovery of gold and silver in secondary slag from gold refining process by co-precipitation with metal hydroxides. ม.ป.ท.:Chulalongkorn University;Romchat Chairaksa และผู้แต่งคนอื่นๆ. Recovery of gold and silver in secondary slag from gold refining process by co-precipitation with metal hydroxides. ม.ป.ท.:Chulalongkorn University, 2005. Print.