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Prof. Yohanes Surya,Ph.D. (). SCIENCE . : .

Gaya Chicago

Prof. Yohanes Surya,Ph.D. SCIENCE. : , . Text.

Gaya MLA

Prof. Yohanes Surya,Ph.D. SCIENCE. : , . Text.

Gaya Turabian

Prof. Yohanes Surya,Ph.D. SCIENCE. : , . Print.