Purwanto, H. “ANALISA SIFAT MEKANIS BAJA ST 40 AKIBAT PERLAKUAN PANAS”. Jurnal Ilmiah Momentum 5, no. 2 (October 19, 2009). Accessed January 30, 2026. https://publikasiilmiah.unwahas.ac.id/MOMENTUM/article/view/123.