Oetomo, D.S., Dewi , E.K. and Ramdhani, R.F. 2024. Analysis of the Development of Downstream Copper Industry in Indonesia to Obtain Maximum Added Value Using Dynamic Systems . Journal of Information System, Technology and Engineering. 2, 3 (Sep. 2024), 287–296. DOI:https://doi.org/10.61487/jiste.v2i3.85.