Roberts-Lombard, Mornay

Fourie, Letitia Engela, editor.

Smit, P.J.

Brookfield, Stephen, author.

Stokes, David (David R.), author.

Corey, Gerald, author.

Thill, John V., author.

Ravitch, Sharon M., author.

Loubser, M. M., editor.

Ham, Anthony, author.

Harding, James, editor.

Gravetter, Frederick J., author. (uri) http://id.loc.gov/authorities/names/n84044621 (uri) http://viaf.org/viaf/sourceID/LC 84044621 (uri) /resolver/wikidata/lc/n84044621