Effective reading. অনুযায়ী Robinson, Francis Pleasant 1906-

Effective study. অনুযায়ী Robinson, Francis Pleasant 1906-

Principles and procedures in student counseling অনুযায়ী Robinson, Francis Pleasant 1906-

Psychology and the new education অনুযায়ী Presey, Sidney Leavitt 1888-

Psychology and the new education অনুযায়ী Pressey, Sidney L. (Sidney Leavitt) 1888-1979

Psychology and the new education অনুযায়ী Pressey, Sidney L. (Sidney Leavitt) 1888-1979, Robinson, Francis Pleasant 1906-