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Ridho Alfan Firdaus, Ratna Putra. (2020). Drafter Cad Mechanical . Surakarta: Mediatama.

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Ridho Alfan Firdaus, Ratna Putra. Drafter Cad Mechanical. Surakarta: Mediatama, 2020. Text.

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Ridho Alfan Firdaus, Ratna Putra. Drafter Cad Mechanical. Surakarta: Mediatama, 2020. Text.

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Ridho Alfan Firdaus, Ratna Putra. Drafter Cad Mechanical. Surakarta: Mediatama, 2020. Print.