“PENGARUH KETINGGIAN BEBAN IMPAK JATUH BEBAS TERHADAP SPEED BUMP DARI BAHAN CONCRETE FOAM DIPERKUAT SERAT TANDAN KOSONG KELAPA SAWIT (TKKS)”. DINAMIS 4, no. 1 (March 1, 2016): 6. Accessed February 5, 2026. https://idjpcr.usu.ac.id/dinamis/article/view/7014.