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Muhamad, M. S.; Johar, M. R.; Sunar, N. M.; Ali, R.; Hamidon, N.; Abdul Hamid, N. H.; Harun, H. Response Surface Methodology For Optimization Of Sodium Sulphate And Sodium Lauryl Sulphate Removal Using Hydroxyapatite Adsorbent. peat 2020, 1 (1), 127-133.