1Akar, H. ( 2001 ). ( Middle East Technical University ) ,Turkey' Evaluating Higher Education Learners through Portfolio Assessment. 'Informing Science2001 Conference, June 19-22, Krakow, Poland.http: //ecommerce.lebow.drexel.edu'eli/abstracts/AkarSUMEval.htm.
2Arter, J. A. & Spandel, V. (1992). Using portfolios of student work in instruction and assessment. Educational Measurement: Issues and Practice, 11,36-44.
3Barton, J., & Collins, A. ( Eds. ) ( 1997 ). Portfolio assessment: A handbook for educators. Menlo Park,CA: Addison-Wesley Publishing Co.
4Cole, D. J., Ryan, C.W., & Kick, F.(1995). Portfolios across the curriculum and beyond.Thousand Oaks, CA: Corwin Press.
5Drury, S. and C. Tweedell (2000). Using Portfolio Assessment For General Education In An Adult Degree Program, AHEA (Adult Higher Education Alliance), USA.http://www.ahea.org'Using Portfolio Assessment for General Ed.htm.
6Forgette-Giroux, R. & M. Simon (2000). Organizational issues related to portfolio assessment implementation in the classroom. Practical Assessment, Research & Evaluation, 7 ( 4 ).http://ericae.net/pare/getvn.asp.
7Linn, Robert L., and Gronlund, Norman E.(2000) Measurement and Assessment in Teaching, Upper Saddle River, NJ: Merrill.
8Porter, Carol and Janell Cleland. 1995, The Portfolio as a Learning,Strategy. Portsmouth: BoyntonCook Publishers.