Karaoglan, B., and L. Ertaul. “A Practice in Using E-Portfolio in a Higher Education Course Taught at Distance”. Elektronika ir Elektrotechnika 102, no. 6 (May 26, 2010): 115-118. Accessed November 24, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/9372.