Land, labour and gold or, two years in Victoria with visits to Sydney and Van Diemen's land / William Howitt

Typical concentration for sulphide gold ore containing clay from South Sukabumi, West Java

Prospecting and exploration of mineral deposits

Rekayasa Ulang Proses Produksi Logam Mulia Emas Studi Kasus di Perusahaan Tambang = Re-engineering Process of Gold: Case Study in Mining Companies

Optimalisasi pelindian emas dari bijih sulfida hasil penambangan daerah Bolaang Mongondow pada larutan tiosulfat dengan variabel konsentrasi ammonia dan ion tembaga = Optimalization of thiosulfate leaching for sulfide Bolaang Mongondow's ore with concentration of ammonia and copper ion varibale