Ruby, A. (1989). Why invest in performance indicator development? Australian Conference of Directors-General of Education.
Citace podle Chicago (17th ed.)Ruby, Alan. Why Invest in Performance Indicator Development? Sydney: Australian Conference of Directors-General of Education, 1989.
Citace podle MLA (8th ed.)Ruby, Alan. Why Invest in Performance Indicator Development? Australian Conference of Directors-General of Education, 1989.
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