Rujukan

WikiPedia: Sisa minyak http://www.gov.ns.ca/JUST/REGULATIONS/regs/env1799... http://www.hering-vpt.com/products/waste-oil-recyc... http://epic.er.doe.gov/epic/docs/525.pdf http://www.epa.gov/osw/conserve/materials/usedoil/ http://www.epa.gov/osw/conserve/materials/usedoil/... http://www.maine.gov/dep/rwm/wasteoil/wasteoil.htm http://uli.nli.org.il/F/?func=find-b&local_base=NL... http://www.c2e2.org/evc/CafUsed.html http://www.dmoz.org/Business/Construction_and_Main... http://www.noranews.org/