O artykule
Data publikacji: 07 gru 2009
Zakres stron: 70 - 75
DOI: https://doi.org/10.2478/v10057-009-0013-6
This content is open access.
Shahram Zadeh
Ministry of Education, Fasa, Fars, Iran
Amin Karimnia
Islamic Azad University, Fasa Branch, Iran