Items where Author is "Sitinjak, Ronaldo Pangidoan"
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Sitinjak, Ronaldo Pangidoan and Khissoga, Giga Husnil Azizi (2021) Pra-Desain Pabrik Pigmen Besi Oksida Dari Pasir Besi Limbah PT. Indonesia Chemical Alumina. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.