Subagja, R. et al. 2012. PENGARUH PENAMBAHAN NaOH, TEMPERATUR DAN WAKTU TERHADAP PEMBENTUKAN FASA NATRIUM TITANAT DAN NATRIUM FERIT PADA PROSES PEMANGGANGAN ILMENIT BANGKA[The Effect of Caustic Addition, Temperature and Reaction Time on The Phase Formation of Sodium Titanate and Sodium Ferrite During The Roasting of Bangka’s Ilmenite]. Jurnal Metalurgi. 27, 3 (Dec. 2012), 241–250. DOI:https://doi.org/10.14203/metalurgi.v27i3.234.