Pengaruh penambahan modifier stronsium terhadap pembentukan intermetalik Al-Fc-Si dan nilai fluiditas paduan hypoeutectic Al-7WC% Si = Influence of addition of strontium modifier in forming of intermetallic phase Al-Fe-Si and the fluidity of hypoeutectic Al-7wt%Si (Fakultas Teknik Universitas Indonesia, 2007)