PENGARUH SUBSTITUSI ABU CANGKANG KELAPA SAWIT (ABU BOILER) TERHADAP KUAT TEKAN DAN WORKABILITY BETON FC 21 MPA. Kohesi: Jurnal Sains dan Teknologi, [S. l.], v. 11, n. 5, 2026. Disponível em: https://journal.cib.institute/index.php/kohesi/article/view/5520. Acesso em: 20 oct. 2026.