Chulalak Changul และผู้แต่งคนอื่นๆ. (2008) Heavy metals and acid generation potentials of solid mining wastes from Akara gold mine, Phichit province. Chulalongkorn University:ม.ป.ท.Chulalak Changul และผู้แต่งคนอื่นๆ. 2008. Heavy metals and acid generation potentials of solid mining wastes from Akara gold mine, Phichit province. ม.ป.ท.:Chulalongkorn University;Chulalak Changul และผู้แต่งคนอื่นๆ. Heavy metals and acid generation potentials of solid mining wastes from Akara gold mine, Phichit province. ม.ป.ท.:Chulalongkorn University, 2008. Print.