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Items where Author is "Purwoko, Heri"
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Thesis
Purwoko, Heri (2017) Analisa Pengaruh Variasi Temperatur Austempering Terhadap Kekerasan dan Ketangguhan Roda Gigi Mesin Mangle di Perusahaan Pengolahan Getah Karet. Other thesis, Universitas Islam Riau.