ERVIANTO, Wulfram I.
 STUDI TENTANG DAYA SAING PENYEDIA JASA KONSTRUKSI DALAM PERSPEKTIF KONSTRUKSI BERKELANJUTAN DI INDONESIA.
<strong>Jurnal Ilmiah Teknik Sipil</strong>, [S.l.], p. 7-15, june 2018.
ISSN 2541-5484.
Tersedia pada: &lt;<a href="https://ojs.unud.ac.id/index.php/jits/article/view/40287" target="_new">https://ojs.unud.ac.id/index.php/jits/article/view/40287</a>&gt;. Tanggal Akses: 09 jan. 2026
doi: <a href="https://doi.org/10.24843/JITS.2018.v22.i01.p02">https://doi.org/10.24843/JITS.2018.v22.i01.p02</a>.