ÇALIŞKAN, O. 2011. Virtual field trips in education of earth and environmental sciences. 3rd World Conference on Educational Sciences (WCES) , (İstanbul, Turkey), 3239-3243.

ÇALIŞKAN, O., (2011). Virtual field trips in education of earth and environmental sciences . 3rd World Conference on Educational Sciences (WCES) (pp.3239-3243). İstanbul, Turkey

ÇALIŞKAN, ONUR. "Virtual field trips in education of earth and environmental sciences," 3rd World Conference on Educational Sciences (WCES), İstanbul, Turkey, 2011

ÇALIŞKAN, ONUR. "Virtual field trips in education of earth and environmental sciences." 3rd World Conference on Educational Sciences (WCES) , İstanbul, Turkey, pp.3239-3243, 2011

ÇALIŞKAN, O. (2011) . "Virtual field trips in education of earth and environmental sciences." 3rd World Conference on Educational Sciences (WCES) , İstanbul, Turkey, pp.3239-3243.

@conferencepaper{conferencepaper, author={ONUR ÇALIŞKAN}, title={Virtual field trips in education of earth and environmental sciences}, congress name={3rd World Conference on Educational Sciences (WCES)}, city={İstanbul}, country={Turkey}, year={2011}, pages={3239-3243} }