Olsen, Olav Rege (26 May 2008). "Duket for keeperskifte" (in Norwegian). Stavanger Aftenblad. Archived from the original on 27 May 2008. Retrieved 31 October 2012.
altomfotball.no
"Håkon Opdal". altomfotball.no (in Norwegian). Retrieved 31 October 2012.
"Håkon Opdal". altomfotball.no (in Norwegian). TV 2. Retrieved 17 July 2019.
Bøyum, Mads (28 July 2012). "Håkon Opdals nye fotballiv" (in Norwegian). Bergens Tidende. Archived from the original on 18 August 2012. Retrieved 31 October 2012.
Bøyum, Mads (28 July 2012). "Håkon Opdals nye fotballiv" (in Norwegian). Bergens Tidende. Archived from the original on 18 August 2012. Retrieved 31 October 2012.
Olsen, Olav Rege (26 May 2008). "Duket for keeperskifte" (in Norwegian). Stavanger Aftenblad. Archived from the original on 27 May 2008. Retrieved 31 October 2012.