Olaf, Z. Et Al. 2015. The development of distance education systems in Turkey Russian Federation and Saudi Arabia. Eropean Journal of Open, Distance and E-Learning , vol.18 , 113-128.

Olaf, Z., KONDAKÇI, Y., Svenja, B., & Utman, A., (2015). The development of distance education systems in Turkey Russian Federation and Saudi Arabia. Eropean Journal of Open, Distance and E-Learning , vol.18, 113-128.

Olaf, ZawackiRichter Et Al. "The development of distance education systems in Turkey Russian Federation and Saudi Arabia," Eropean Journal of Open, Distance and E-Learning , vol.18, 113-128, 2015

Olaf, ZawackiRichter Et Al. "The development of distance education systems in Turkey Russian Federation and Saudi Arabia." Eropean Journal of Open, Distance and E-Learning , vol.18, pp.113-128, 2015

Olaf, Z. Et Al. (2015) . "The development of distance education systems in Turkey Russian Federation and Saudi Arabia." Eropean Journal of Open, Distance and E-Learning , vol.18, pp.113-128.

@article{article, author={ZawackiRichter Olaf Et Al. }, title={The development of distance education systems in Turkey Russian Federation and Saudi Arabia}, journal={Eropean Journal of Open, Distance and E-Learning}, year=2015, pages={113-128} }