1. INALUM, “Company Long-term Plans of INALUM” (Rencana Jangka Panjang Perusahaan, Kuala Tanjung, Indonesia, 2016).
2. INALUM, Annual Report 2016, 2017.
3. S.S. Sijabat, I. Ermisyam, M.S. Sunardi, “Enhancing Production Performance by Optimization All Resources at PT INALUM (Persero)”, Light Metals (2016), p 559–562.
4. Rene Von Kaenel and Dr. Jacques Antille, Electrolysis Course Kannak, KAN-NAK S.A., Switzerland, 2008.
5. D. Sinaga, S. Bice, H. Yunaz, M. Kondo, “Technical Improvement in INALUM”, Light Metals (2007), p 237–241.