Joubert, J J2012-07-092012-07-091993Joubert, J.J. 1993. Tyd en terminologie moet verstaan word. Yesterday & today = Gister en vandag, 25:40-56, May. [http://www.sashtw.org.za/index2.htm] [http://dspace.nwu.ac.za/handle/10394/5126]2223-0386http://hdl.handle.net/10394/6768otherArticle