Lestari, Dwi, Muhammad Jumnahdi, and Donny Manalu. “ANALISIS KEKERASAN BETON MENGGUNAKAN SUARA BERBASIS FFT (FAST FOURIER TRANSFORM)”. ELECTRON : Jurnal Ilmiah Teknik Elektro 1, no. 1 (September 7, 2018): 54-62. Accessed April 30, 2024. https://journal.ubb.ac.id/electron/article/view/376.