Cangül, İ. N. And Bizim, O. 2004. Small indexed normal subgroups of Hecke Group H((1+ )/2), . The Southeast Asian Bulletin of Mathematics , vol.27 , 791-794.

Cangül, İ. N., & Bizim, O., (2004). Small indexed normal subgroups of Hecke Group H((1+ )/2), . The Southeast Asian Bulletin of Mathematics , vol.27, 791-794.

Cangül, İSMAİL, And OSMAN BİZİM. "Small indexed normal subgroups of Hecke Group H((1+ )/2), ," The Southeast Asian Bulletin of Mathematics , vol.27, 791-794, 2004

Cangül, İSMAİL N. And Bizim, OSMAN. "Small indexed normal subgroups of Hecke Group H((1+ )/2), ." The Southeast Asian Bulletin of Mathematics , vol.27, pp.791-794, 2004

Cangül, İ. N. And Bizim, O. (2004) . "Small indexed normal subgroups of Hecke Group H((1+ )/2), ." The Southeast Asian Bulletin of Mathematics , vol.27, pp.791-794.

@article{article, author={İSMAİL NACİ CANGÜL And author={OSMAN BİZİM}, title={Small indexed normal subgroups of Hecke Group H((1+ )/2), }, journal={The Southeast Asian Bulletin of Mathematics}, year=2004, pages={791-794} }