HELLER P, . (1999). "ESSENTIAL MANAGERS, MOTIVATING PEOPLE (UNDERSTANDING ENCOURAGING REWARDING - OBJECTIVES - AIMS APPRAISALS LEARNING TRAINING TIPS EVALUATING - INCENTIVES INSPIRING - COACHING .". NULL: NULL.
HELLER P, . 1999. "ESSENTIAL MANAGERS, MOTIVATING PEOPLE (UNDERSTANDING ENCOURAGING REWARDING - OBJECTIVES - AIMS APPRAISALS LEARNING TRAINING TIPS EVALUATING - INCENTIVES INSPIRING - COACHING .". NULL: NULL.
HELLER P, . "ESSENTIAL MANAGERS, MOTIVATING PEOPLE (UNDERSTANDING ENCOURAGING REWARDING - OBJECTIVES - AIMS APPRAISALS LEARNING TRAINING TIPS EVALUATING - INCENTIVES INSPIRING - COACHING .". NULL: NULL. 1999.