Hay, Abdul, AND 		Darmawa, Arief.
" Katalisator Cangkang Keong Mas Terhadap Sifat Mekanik Baja ST42 Melalui Proses Kaburasi" <em>Jurnal Energi Dan Manufaktur</em> [Online], Volume 9 Number 1 (28 December 2016)