Deoxyribonucleic acid extraction for invertebrate metabarcoding from stream sediment and implication to biotic indices von M.H.F. Amin, H.W. Kim, I.A. Pratiwi, A.R. Kim, H.E. Kang, N.I. Oktavitri, T. Soedarti

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Evaluation of communal wastewater treatment plant based on technical, institutional, and community participation aspects in South Surabaya von Purnawanti, E, Oktavitri, N I, Isnadina, D R M, Fitriani, N

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Distribution mapping of Open Defecation (OD) houses in East Surabaya based on Geographic Information System (GIS) von Purnama, M Y, Soedarti, T, Oktavitri, N I, Fitriani, N

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Performance of sequencing batch reactor (SBR) of treated tofu wastewater: variation of contact time and activated sludge sources von Sakinah, N E, Rahmatullah, L T, Kuncoro, E P, Oktavitri, N I

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