Білоус, О.В., Демидов, І.М. and Бухкало, С.І. 2015. Developing the complex antioxidant from walnut leafs and calendula extracts. Eastern-European Journal of Enterprise Technologies. 1, 6 (73) (Feb. 2015), 22–26. DOI:https://doi.org/10.15587/1729-4061.2015.35995.