Liên quan Boris Nikolayevich Yeltsin Boris Johnson Boris Yefimovich Nemtsov Boris Gelfand Boris Leonidovich Pasternak Boris Aleksandrovich Aleksandrov Boris Becker Boris Paichadze Dinamo Arena Borisov Arena Boris Godunov (Sa hoàng)
Tài liệu tham khảo WikiPedia: Boris Kolker //edwardbetts.com/find_link?q=Boris_Kolker http://e-novosti.info/forumo/viewtopic.php?t=4103 http://vi.lernu.net/kursoj/kolker/index.php http://www.akademio-de-esperanto.org/oficialaj_inf... http://eo.wikipedia.org/wiki/Voja%C4%9Do_en_Espera... http://www.esperanto.mv.ru/Esp16/index.html http://www.esperanto.mv.ru/Lernolibro/index.html https://archive.is/20120710093304/miresperanto.nar... https://web.archive.org/web/20090519174235/http://... https://web.archive.org/web/20101122130208/http://...
