AST(Advanced Computer Science and Information Technology), vol. 195, page. 216 - 222, 2011-09
COMMUNICATION OF COLIPS, vol. 9, no. 1, page. 55 - 66, 1999-07
JOURNAL OF COMPUTER SCIENCE AND ENGINEERING, vol. 2, no. 1, page. 1 - 25, 2008-03
Journal of Computer Science and Engineering, vol. 2, no. 1, page. 1 - 26, 2008-03