1. Faculty of Biology, Institute of Botany and Botanical Garden “Jevremovac”, University of Belgrade, Belgrade, Serbia
2. Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
3. Faculty of Applied Sciences, Universiti Teknologi MARA, Selangor, Malaysia
4. Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan