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APPA Library

"Chapter 2: The Mathematics of Change"
Author: Dudley, Jack C.
Published In: Custodial Staffing Guidelines for Educational Facilities, second edition
Date: 1998

Contains summary of the data collected on cleaning presented in the matrix format developed for the first edition of the guidelines.  Included are instructions for using these to both compare an operation to North American "norms" and modify them to model and predict staffing levels needed. 

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