PERBEDAAN KETEBALAN BUSA POLYURETHANE DENGAN KOMBINASI SERAT SABUT KELAPA TERHADAP PENURUNAN KADAR MINYAK DAN LEMAK LIMBAH CAIR KANTIN PT. X. Spektrum Akademika: Jurnal Multidisiplin, [S. l.], v. 1, n. 1, p. 1012–1021, 2026. Disponível em: https://journal-edu.org/index.php/jsa/article/view/451.. Acesso em: 7 oct. 2026.