Items where Author is "Yusronnul Arifien, 2007"
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Thesis
Yusronnul Arifien, 2007 (2007) Perbandingan Kekuatan Tarik (Tensile Strenght) Akibat Variasi Katalis Pada Proses Carburizing Baja St 40. Under Graduates thesis, Universitas Negeri Semarang.