निम्नलिखित विचारकों में से किसने कहा था, 'भौतिकी या रसायन विज्ञान की तरह, प्रशासन भी सिद्धांतों द्वारा शासित होता है'?

Which of the following is described as anti-theoretic, anti-positivist, and anti-hierarchical in Public Administration?

The formula for calculating the mathematical span of control and relationships in organisation theory was formulated by: