List of Articles Refractive index. Open Access Article Abstract Page Full-Text 1 - Evaluation of the physical and chemical properties of the essential oil obtained from the oleo-gum- resin of two populations of Ferula gummosa from Fars and Isfahan provinces Arife Vaez Shahrestani Razieh Azimi Atergeleh Vahid Abdousi Mehdi Mirza marzieh ghanbari jahromi