8Koopman, P How to write an abstract. 1997. Retrieved August 26, 2002, from:http://www.ece.cmu. edu/- koopman/essays/abstract.html.
9Tippett, J M "Down m earth" research advice. No date.Retrieved August 26, 2002, from:http://www. earthresearch. com/writing-abstract. shtm.
10Bassey, M Creating education through research : A global perspective of educational for the 21^t century. Edinburgh:Kirklington Moor Press & the British Educational Research Association. 1995.