APA (7th ed.) Citation

(1979). Peraturan Tras & Semen Merah Indonesia Ni-20. DPU.

Chicago Style (17th ed.) Citation

Peraturan Tras & Semen Merah Indonesia Ni-20. DPU, 1979.

MLA (8th ed.) Citation

Peraturan Tras & Semen Merah Indonesia Ni-20. DPU, 1979.

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