Funuk, M., Y. Rumbino, and M. Metboki. “PENGARUH PENAMBAHAN FLY ASH BATUBARA TERHADAP KUALITAS GERABAH”. Jurnal Teknologi, Vol. 17, no. 1, May 2023, pp. 40-43, https://ejurnal.undana.ac.id/index.php/jurnal_teknologi/article/view/11338.