YILDIRIM, U. And ERYILMAZ, A. 1999. Effects of gender cognitive development and socioeconomic status on physics achievement. Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education , vol.15 , 121-126.

YILDIRIM, U., & ERYILMAZ, A., (1999). Effects of gender cognitive development and socioeconomic status on physics achievement. Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education , vol.15, 121-126.

YILDIRIM, UFUK, And ALİ ERYILMAZ. "Effects of gender cognitive development and socioeconomic status on physics achievement," Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education , vol.15, 121-126, 1999

YILDIRIM, UFUK And ERYILMAZ, ALİ. "Effects of gender cognitive development and socioeconomic status on physics achievement." Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education , vol.15, pp.121-126, 1999

YILDIRIM, U. And ERYILMAZ, A. (1999) . "Effects of gender cognitive development and socioeconomic status on physics achievement." Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education , vol.15, pp.121-126.

@article{article, author={UFUK YILDIRIM And author={ALİ ERYILMAZ}, title={Effects of gender cognitive development and socioeconomic status on physics achievement}, journal={Hacettepe Universitesi Egitim Fakultesi Dergisi-Hacettepe University Journal Of Education}, year=1999, pages={121-126} }