Mapping the End-of-Life Electric Motorcycle Battery System in Indonesia: A Multi-Actor Causal Loop Diagram of OEM, Informal, User, and Government Interactions. Spek Ind [Internet]. 2026 Oct. 28 [cited 2026 Nov. 2];24(2):406-20. Available from: https://journal3.uad.ac.id/index.php/spektrum/article/view/741