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Lobin, Henning, Andreas Witt & Angelika Wöllstein (Hgg.)(2021), Deutsch in Europa. Sprachpolitisch–grammatisch–methodisch. Berlin/Boston: Walter de Gruyter.(IDS Leibniz Institut für Deutsche Sprache, Jahrbuch 2020)
Soil Fertility Maintenance In Niger Delta Region Of Nigeria: Issues, Trends And Challenges: Academic Discourse: An International Journal, Volume 9, No. 1