Studi pengaruh penambahan karbon pada proses reduksi langsung batu besi = Study of carbon addition effect to the direct reduction process of lump ore

Analisa pengaruh temperatur pada proses reduksi langsung bijih besi laterit = Study of temparature effect in direct reduction process of laterite iron ore

Studi pengaruh temperatur reduksi terhadap hasil reduksi langsung pelet komposit bijih besi/batu bara dengan menggunakan single conveyor belt hearth furnace = Study of reduction temperature effect on direct reduction product of iron ore/ coal composite pellet using single conveyor belt hearth furnace

Studi pengaruh ukuran bijih terhadap proses reduksi langsung bijih besi bongkah menjadi bijih besi spons menggunakan tanur putar sederhana skala rumah tangga = Study of ore size effect on direct reduction process of iron ore to sponge iron using home industrial scale rotary kiln

Studi pengaruh variasi temperatur operasi terhadap hasil reduksi langsung bijih besi menggunakan cangkang kelapa sawit sebagai reduktor = Study on the effect of variation in operation temperature to the result of iron's ore direct reduction using palm kernel shell as the reductor