Гринченко, О. О., Н. М. Пенкіна, and В. В. Колесник. “Examination of Quality Goods for Personal Appointments, Which Are Implemented at Retail Kharkov”. Eastern-European Journal of Enterprise Technologies, vol. 6, no. 6(60), Dec. 2012, pp. 70-72, doi:10.15587/1729-4061.2012.5573.