1. Anderson J. and Mikhail E. (1985). Introduction to Surveying . McGraw‐Hill Book Co. Inc. New York N.Y.
2. Bernold L. E. (1986). “Low level artificial intelligence and computer simulation to plan and control earthmoving operations.” Earthmoving and Heavy Equipment . Proc. conf. sponsored by Committee on Constr. Equipment and Techniques of Constr. Div. ASCE New York N.Y.
3. Earthwork Allocations with Nonconstant Unit Costs
4. Earthwork Allocations with Linear Unit Costs
5. Hickerson T. (1964). Route location and design . McGraw‐Hill Book Co. Inc. New York N.Y.