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Standley Systems
2601 N.W. Expressway, Suite 1110W
Oklahoma City, Oklahoma
73112
United States
The American Society for Mathematics
in Educational Cooperative Organizations
P.O. Box 60434
Oklahoma City, Oklahoma
73127
United States
Technique Data Systems
333 W. Wilshire Blvd., Suite C
Oklahoma City, Oklahoma
73116-7765
United States