Setiadi RB, Hernadewita H. Designing a Model Using a Dynamic Systems Approach in the Utilization of Nickel Slag Waste . Eduvest [Internet]. 2026Jan.7 [cited 2026Oct.7];6(1):234-46. Available from: http://www.eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/52633