KARAL, H. Et Al. 2013. Using pen-based technology in online mathematics course: An evaluation study. European Journal of Open, Distance and e-Learning , vol.16, no.2 , 152-164.

KARAL, H., KOKOÇ, M., ÇOLAK, C., & YALÇIN, Y., (2013). Using pen-based technology in online mathematics course: An evaluation study. European Journal of Open, Distance and e-Learning , vol.16, no.2, 152-164.

KARAL, HASAN Et Al. "Using pen-based technology in online mathematics course: An evaluation study," European Journal of Open, Distance and e-Learning , vol.16, no.2, 152-164, 2013

KARAL, HASAN Et Al. "Using pen-based technology in online mathematics course: An evaluation study." European Journal of Open, Distance and e-Learning , vol.16, no.2, pp.152-164, 2013

KARAL, H. Et Al. (2013) . "Using pen-based technology in online mathematics course: An evaluation study." European Journal of Open, Distance and e-Learning , vol.16, no.2, pp.152-164.

@article{article, author={HASAN KARAL Et Al. }, title={Using pen-based technology in online mathematics course: An evaluation study}, journal={European Journal of Open, Distance and e-Learning}, year=2013, pages={152-164} }