List of Articles Hydrometallurgy Open Access Article Abstract Page Full-Text 1 - Investigation of leaching of zinc from oxide waste using citric acid Hassan Koohestani Elahe Sadat khatami Open Access Article Abstract Page Full-Text 2 - Bio-Hydrometallurgy of Electronic Waste: Extraction of Precious Metals by Cyanogenic Microorganisms and Influencing Factors H Ahmadiani A Rabieifar H Sabet