00527naa#a2200169#i#450# EN\\bibl\88207 20250809130748.6 2074-8183 20180625b2018####ek#y0engy0150####ca RUS RU QUALIFICATION MATTERS TO IMPLEMENT NON-REGISTERED BUSINESS (ENTERPRISE) ACTIVITIES Journal article Volgograd Volgograd Academy of the Ministry of Internal Affairs of Russia 2018 5 с. Journal article local va-mvd.editorum.ru