Mustafa Bolca, Ünal Altinbas, Yusuf Kurucu and M. Tolga Esetlili
Journal of Applied Sciences 5 ( 4 ): 659 - 665 , 2005
Yusuf Kurucu, Mustafa Bolca, Unal Altinbas and M. Tolga Esetlili
Journal of Applied Sciences 4 ( 4 ): 542 - 546 , 2004