Cahyo Wibowo and M. Muryanto 2026. Evaluasi Kebijakan CNG Cylinder ISO 11439 pada Gas Transport Module: Perspektif Requalification, Keselamatan Teknis, dan Ekonomi Sirkular. Engineering and Technology International Journal. 8, 02 (Jul. 2026), 48–59. DOI:https://doi.org/10.55642/eatij.v8i02.1369.