TY JOUR TI "20×10 Policy" as a New Stage of Regional Development in the DPRK KW DPRK KW economy KW regional development KW "20×10 Regional Development Policy" KW local industry KW improving living standards JO Ojkumena. Regional Researches AU Zakharova, L.V. PY 2025 IS 19 PB Vladivostok State University