Studi pengaruh penambahan penghalus butir titanium dengan kadar 0.0505 wt. % dan 0.072 wt. % terhadap karakteristik paduan AC4B hasil low pressure die casting = Study on effects of 0.0505 wt. % and 0.072 wt. % titanium grain refiner on characteristics of AC4B alloy produced by low pressure die casting - Daniel Julian Kharistal, author (2008)