Dyfyniad APA

Portugal, R. F., & Reyes, D. D. The domestic resource cost analysis of copper smelting in the Philippines.

Dyfyniad Arddull Chicago

Portugal, Roque Francisco, and Daniel Delfin Reyes. The Domestic Resource Cost Analysis of Copper Smelting in the Philippines.

Dyfyniad MLA

Portugal, Roque Francisco, and Daniel Delfin Reyes. The Domestic Resource Cost Analysis of Copper Smelting in the Philippines.

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