Identification of surface functional group on activated carbon from waste sago by Octolia Togibasa, Yane Oktovina Ansanay, Khaeriah Dahlan, Maya Erari

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Profil dan Karakteristik Mineral Nikel Laterit di Daerah Angkasapura, Kota Jayapura, Papua, Indonesia by Endang Haryati, Khaeriah Dahlan, Steven Yohanes Yulianus Mantiri, Beatrix Singir

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Mineral Content and Magnetic Properties of River Iron Sand from Jayapura, Papua by Endang Haryati, Khaeriah Dahlan, Martina Bunga, Daniel Napitupulu, Octolia Togibasa

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The Effect of Chemical Activating Agent on the Properties of Activated Carbon from Sago Waste by Octolia Togibasa, Mumfaijah Mumfaijah, Yanti Kiding Allo, Khaeriah Dahlan, Yane Oktovina Ansanay

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