- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes ( Hansie) Nicolaas Joubert, person ID MMWJ-79D.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes Joubert, person ID K4T8-KS2.
» Les sources » Arbre généalogique M. Tolsma » Généalogie Online">
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes ( Hansie) Nicolaas Joubert, person ID MMWJ-79D.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes Joubert, person ID K4T8-KS2.
» Les sources » Arbre généalogique M. Tolsma » Généalogie Online">