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Nakagawa, Yusuke and Shotaro, Katano and M. Lutfi , Firdaus and Kazuhiro , Norisuye and Takafumi , Hirata and Derek, Vance and Yoshiki , Sohrin (2012) The molybdenum isotopic composition of the modern ocean. Geochemical Journal, 46. pp. 131-141. ISSN 1880-5973
Nakatsuka, Seiji and Kei , Okamura and Shigenobu , Takeda and Jun , Nishioka and M. Lutfi , Firdaus and Kazuhiro , Norisuye and Yoshiki , Sohrin (2009) Behaviors of dissolved and particulate Co, Ni, Cu, Zn, Cd and Pb during a mesoscale Fe enrichment experiment (SEEDS II) in the western North Pacific. Deep-Sea Research II (56). pp. 2822-2838. ISSN 0967-0645
Nakagawa, Yusuke and M. Lutfi , Firdaus and Kazuhiro , Norisuye and Yoshiki , Sohrin and Keita , Irisawa and Takafumi , Hirata (2008) Precise Isotopic Analysis of Mo in Seawater Using Multiple Collector-Inductively Coupled Mass Spectrometry Coupled with a Chelating Resin Column Preconcentration Method. Analytical Chemistry,, 80 (23). pp. 9213-9219. ISSN 0003-2700
Ferli Trinoveldi, Ferli Trinoveldi and M. Lutfi , Firdaus and Wiwit, Wiwit (2013) ANALISIS KADAR KROMIUM (Cr) DAN BESI (Fe) DENGAN PENCITRAAN DIGITAL MENGGUNAKAN REGRESI LINIER SEDERHANA (RLS)DAN PARTIAL LEAST SQUARE (PLS). Undergraduated thesis, Fakultas Keguruan dan Ilmu Pendidikan Universitas Bengkulu.
Pamungkas, Arif and M. Lutfi , Firdaus and Hermansyah, Amir (2013) UJI KEMAMPUAN ALANG-ALANG (Imperata cylindrica L.) SEBAGAI PENYARING AIR TANAH. Undergraduated thesis, Fakultas Keguruan Ilmu Pendidikan Universitas Bengkulu.
Asyari Pupanosa, Muhammad and M. Lutfi , Firdaus and Agus, Sundaryono (2012) INDIKATOR ALTERNATIF ASAM BASA DARI EKSTRAK BERBAGAI BUNGA DAN IMPLEMENTASINYA MENGGUNAKAN PENDEKATAN SALINGTEMAS DI SMA NEGERI 1 MUARA KELINGI. Masters thesis, Fakultas Keguruan Dan Ilmu Pendidikan UNIB.