Chulalak Changul. 2008. Heavy metals and acid generation potentials of solid mining wastes from Akara Gold Mine, Phichit province. Graduate School, Chulalongkorn University;
Chulalak Changul. (2008) Heavy metals and acid generation potentials of solid mining wastes from Akara Gold Mine, Phichit province . Chulalongkorn University/Bangkok.
Chulalak Changul. Heavy metals and acid generation potentials of solid mining wastes from Akara Gold Mine, Phichit province. . Bangkok:Chulalongkorn University, 2008.
Chulalak Changul. (2008) Heavy metals and acid generation potentials of solid mining wastes from Akara Gold Mine, Phichit province . Chulalongkorn University/Bangkok.