%0 Journal Article %T An Optimal Pair of Levels for Adding Relation between Two Levels of a Linking Pin Organization Structure with Two Subordinates %A Kiyoshi Sawada %J IAENG International Journal of Applied Mathematics %D 2012 %I International Association of Engineers (IAENG) %U http://www.iaeng.org/IJAM/issues_v42/issue_4/IJAM_42_4_06.pdf