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Oskol (sông) Oskaloosa, Iowa Oskaloosa, Kansas Oskořínek Okolona, Mississippi Okolona, Arkansas Osmolindsaea japonica Osmolindsaea odorata Okolpania captiosa Okole, Hạt SzczecinekTài liệu tham khảo
WikiPedia: Oskol (sông) http://www.encyclopediaofukraine.com http://www.encyclopediaofukraine.com/pages/O/S/Osk... //tools.wmflabs.org/geohack/geohack.php?language=v... //tools.wmflabs.org/geohack/geohack.php?language=v... //www.worldcat.org/issn/0362-4331 http://textual.ru/gvr/index.php?card=171556 https://www.nytimes.com/interactive/2022/09/21/wor... https://t.me/truexanewsua/38055