?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Y.&rft.au=Uemura%2C+Y.&rft.aulast=Uemura&rft.date=2013&rft.title=Chemical+activation+of+biochar+made+from+oil+palm+kernel+shell+and+its+application+to+adsorbent+for+p-nitrophenol&rft.isbn=9781634390422&rft.genre=proceeding