KALKAN, E. Et Al. 2012. Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey. INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES , vol.7, no.15 , 2387-2397.

KALKAN, E., Bilici, Ö., & Kolaylı, H., (2012). Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey. INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES , vol.7, no.15, 2387-2397.

KALKAN, Ekrem, Özgür Bilici, And Hasan Kolaylı. "Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey," INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES , vol.7, no.15, 2387-2397, 2012

KALKAN, Ekrem Et Al. "Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey." INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES , vol.7, no.15, pp.2387-2397, 2012

KALKAN, E. Bilici, Ö. And Kolaylı, H. (2012) . "Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey." INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES , vol.7, no.15, pp.2387-2397.

@article{article, author={Ekrem KALKAN Et Al. }, title={Evaluation of Turkish black amber: a case study of the Oltu (Erzurum), NE Turkey}, journal={INTERNATIONAL JOURNAL OF PHYSICAL SCIENCES}, year=2012, pages={2387-2397} }