Mubarok, M. Z.; Fathoni, M. W. Studi Kinetika Pelindian Bijih Nikel Limonit Dari Pulau Halmahera Dalam Larutan Asam Nitrat [Kinetics Study of Nickel Limonite Ore Leaching from Halmahera Island in Nitric Acid Solution]. Metalurgi 2016, 31, 59-68.