R. Ashlock

Error Patterns in Computation: Using Error Patterns to Improve Instruction

R. Ashlock, 2001 .

Treatment modalities of bladder/prostate rhabdomyosarcoma: a review

P. Johnstone, R. Ashlock, P. Johnstone, 2003, Prostate Cancer and Prostatic Diseases.

Error patterns in computation;: A semi-programmed approach

Robert B Ashlock, R. Ashlock, 1972 .

Parents Can Help Children Learn Mathematics.

R. Ashlock, 1990 .

Current research in elementary school mathematics

Robert B. Ashlock, Wayne L. Herman, R. Ashlock, 1970 .