Assessment of trace metal contamination of soil in a landfill vicinity: A southern Africa case study by Joan Nyika, Ednah Onyari, Megersa Dinka, Bhardwaj Shivani

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Reuse of domestic sewage sludge to achieve a zero waste strategy & improve concrete strength & durability - A review by Sinqobile Vilakazi, Ednah Onyari, Onyeka Nkwonta, Joseph K. Bwapwa

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A Comparison of Reproducibility of Inductively Coupled Spectrometric Techniques in Soil Metal Analyses by Joan Nyika, Ednah Onyari, Megersa Olumana Dinka, Shivani Bhardwaj Mishra

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