Setiawan, A., S. Savetlana, and G. A. Ibrahim. “PENGARUH UKURAN BUTIR SERBUK FLY ASH TERHADAP KEKUATAN IMPACT BAHAN KOMPOSIT BERMATRIKS EPOXY”. Jurnal Ilmiah Teknik Mesin, vol. 1, no. 4, Oct. 2013, https://journal.eng.unila.ac.id/index.php/fema/article/view/82.