1. Recovery of gold and silver from arsenoferrous, pyrite cinder by acidic thiourea leaching;Moussoulos,1984
2. Extraction of gold and silver from refractory concentrates: cyanide leach vs bromine process;Dadgar,1988
3. The solubility of gold and silver in thiourea;Plaskin;Dokl. Akad. Nauk. SSSR,1941
4. Ferric chloride, thiourea, and brine leach recovery of Ag, Au, and Pb from complex sulphides;Sandberg;J. Metals,1986
5. Thiourea as a lixiviant for gold and silver;Hiskey,1981