Studi pengaruh penambahan batubara pada proses roasting reduction bijih nikel saprolit dan pelindian (leaching) dalam larutan asam sulfat 1 molar = Study of coal addition effect on roasting reduction process of saprolitic nickel ore and leaching in sulfuric acid 1 molar

Analisis pengaruh konsentrasi NaOH pada proses Bayer terhadap ekstraksi bijih nepheline = Effect of NaOH concentration in Bayer process on extraction of nepheline ore in Bayer process

Pengaruh temperatur pada proses bayer terhadap ekstraksi alumina pada bijih nepheline = Temperature effects in bayer process for extracting alumina in nepheline ore

Pengaruh temperatur canai hangat multi pass dan waktu tahan terhadap kekerasan, struktur mikro, dan besar butir baja karbon rendah = Effect of multi pass warm rolling temperature and delay time on hardness, microstructure, and grain size of low carbon steel

Pengaruh temperatur austenisasi dan waktu tahan terhadap perubahan ukuran butir dan kekerasan pada baja HSLA A 572 Grade 50 = The effect of austenitization temperature and holding time of change of grain size and hardness on the HSLA steel A 572 grade 50