Items where Author is "Ratnaningrum, Ratnaningrum"
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Dr. Megawati , Megawati and Nisa, Khairatun and Ratnaningrum, Ratnaningrum (2016) STUDI KINETIKA METALLIC CATALYTIC CONVERTER BERBAHAN LOGAM PADUAN CuZn UNTUK MENGURANGI EMISI GAS KARBONMONOKSIDA DAN HIDROKARBON. Under Graduates thesis, Fakultas Teknik, Universitas Negeri Semarang.