SIMANJUNTAK, Johan Oberlyn et al.
 BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN MEMANFAATKAN LIMBAH ABU CANGKANG SAWIT.
<strong>Jurnal Darma Agung</strong>, [S.l.], v. 28, n. 3, p. 387-401, dec. 2020.
ISSN 2654-3915.
Available at: &lt;<a href="https://ejurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/803" target="_new">https://ejurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/803</a>&gt;. Date accessed: 25 nov. 2024.
doi: <a href="http://dx.doi.org/10.46930/ojsuda.v28i3.803">http://dx.doi.org/10.46930/ojsuda.v28i3.803</a>.