SUMITRO, D. (1990). English For Science And Technology Djoko Sumitro. Gama Press.
Chicagoスタイル(17版)引用形式SUMITRO, Djoko. English For Science And Technology Djoko Sumitro. Gama Press, 1990.
MLA(8版)引用形式SUMITRO, Djoko. English For Science And Technology Djoko Sumitro. Gama Press, 1990.
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