S. PERMANA; J. W. SOEDARSONO; A. RUSTANDI; A. MAKSUM; I. SUSANTO. Other Oxides Pre-removed from Bangka Tin Slag to Produce a High Grade Tantalum and Niobium Oxides Concentrate: An Advance Study . New Ideas Concerning Science and Technology Vol. 9, [S. l.], p. 147–158, 2021. DOI: 10.9734/bpi/nicst/v9/6887D. Disponível em: https://stm.bookpi.org/NICST-V9/article/view/509. Acesso em: 13 jun. 2026.