"COST-BENEFIT ANALYSIS." . . . . "COPPER INDUSTRY." . . . . . "Economic evaluation of mineral processing projects : a case study of copper smelting in the Philippines" . . . "Economic evaluation of mineral processing projects" . . "Economic evaluation of mineral processing projects : a case of copper smelting in the Philippines" . . . . . . . . . . . "Economic evaluation of mineral processing projects a case study of copper smelting in the Philippines" . . "PHILIPPINES." . . "Philippine Associated Smelting and Refining Corporation." . .