Fraenkel J. R.,Wallen N. E.How to design and evaluate research in education. 6th ed.Boston: McGraw-Hill; 2006:
4.
GuzmanN. (2000). Reflection on undergraduate chemistry laboratory: A qualitative research study. http://web.uccs.edu/bgaddis/leadership/interview.htm. Retrieved March 12, 2002.
5.
Hills G.,Tedford D..The education of engineers: the uneasy relationship between engineering, science and technology.Global Journal of Engineering Education. 2003;7 (1): 17-28
6.
Maree J. G.,Scholtz S.,Botha H. J.,van Putten S.South African journal of Education. 2005:61-68.
Steyn TM.Graphical exploration as an aid to mastering fundamental mathematical concepts: An instructional model for mathematical practicals. Pretoria: University of Pretoria; 1998:
16.
Wallace B.,Bentley R.Teaching thinking skills across the middle years. London: David Fulton Publishers; 2001:
17.
Wallace B.Introductory workshop: Introducing TASC into tertiary environments. University of Pretoria; 2007a:
18.
Wallace B.Introductory workshop: Introducing TASC into tertiary environments. University of the North-West, Potchefstroom Campus; 2007b:
19.
WallaceB. (2007c). Personal communication with Belle Wallace, 2007.
20.
Wallace B.,Maker J.The Handbook of Giftedness. Shavinia L., ed. New London: Springer Science;
21.
Whitehead J.,McNiff J.Action research: Living theory. Thousand Oaks: Sage; 2006: