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

Pengaruh konsentrasi lixiviant dan waktu pelindian bijih malasit dengan ammonium bikarbonat = Effect of lixiviant concentration and leaching time malachite ore in ammonium bicarbonate

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

Pengaruh konsentrasi ubi ungu sebagai inhibitor ramah lingkungan untuk material baja karbon rendah dalam larutan NaCl kadar 3,5% pada temperatur 50°C = The effect of concentration purple sweet potato as green inhibitor of low carbon steel material in NaCl solution levels of 3.5% at 50°C temperature

Karakteristik komposit aluminium AC8A/grafit dengan proses stir casting = Characteristics of aluminium AC8A/graphite composite fabricated with stir casting process