"Dubnium". Merriam-Webster (in Èdè Gẹ̀ẹ́sì). Retrieved March 24, 2018.  "Dubnium". Oxford Dictionaries: English. Retrieved March 24, 2018.  Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Haire Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named BFricke