(2001). . University Textbooks; Research and Writting, 6(7), 1-128.
. "". University Textbooks; Research and Writting, 6, 7, 2001, 1-128.
(2001). '', University Textbooks; Research and Writting, 6(7), pp. 1-128.
. University Textbooks; Research and Writting, 2001; 6(7): 1-128.