Indriyanto, E. ., Yustika, A. E. ., Prayitno, H. ., Setiawan, D., & Dewi, D. N. A. M. (2026). Strategic Gaps in Indonesia’s Nickel and Electric Vehicle Battery Downstreaming: Implications for Investment Readiness. Oikonomia: Jurnal Manajemen, 22(1), 1–16. https://doi.org/10.47313/oikonomia.v22i1.4454