1. Information on https://www.statista.com/statistics/1132484/malaysia-iron-ore-production/
2. Information on https://www.statista.com/statistics/270008/top-importing-countries-of-iron-ore/
3. Malaysian Mineral Yearbook (Mineral and Geoscience Department Malaysia, Ministry of Natural Resources and Environment Malaysia, Kuala Lumpur, Malaysia, 2010), 20, pp. 1–126.
4. J. D. Bakker, Metall. Mater. Trans. E 1E, 1–19 (2014).
5. A. A. S. Seifelnassr, E. M. Moslim and A.Z. M. Abouzeid, Physicochem. Probl. Miner. Process 48(2), 567–578 (2012).