Ichiro Terashima Takashi Fujita Takeshi Inoue Wah Soon Chow Riichi Oguchi

onder idil education faculty, amasya university, amasya,turkey; science education programme, faculty of education, amasya university, amasya, turkey. tel: +90- 3582526230, fax: +90-3582526222 cihan darcan department of molecular biology and genetics, faculty of arts and sciences, bilecik seyh edebali university, bilecik, turkey tevfik ozen department of chemistry, faculty of art and sciences, ondokuz mayis university, samsun, turkey resit ozkanca science institute, meliksah university, kayseri, turkey