IŞIK, H. Et Al. 2001. The effectiveness of in-service training programs for school principals in Turkey. The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA .

IŞIK, H., AKÇAY, R. C., BAŞAR, M. A., & AYPAY, A., (2001). The effectiveness of in-service training programs for school principals in Turkey. The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA .

IŞIK, HALİL Et Al. "The effectiveness of in-service training programs for school principals in Turkey," The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA , 2001

IŞIK, HALİL Et Al. "The effectiveness of in-service training programs for school principals in Turkey." The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA , 2001

IŞIK, H. Et Al. (2001) . "The effectiveness of in-service training programs for school principals in Turkey." The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA .

@article{article, author={HALİL IŞIK Et Al. }, title={The effectiveness of in-service training programs for school principals in Turkey}, journal={The University Council for Educational Administration (UCEA) Yıllık Kongresi. Albuquerque, New Mexico, USA}, year=2001}