किसी संगठन में पदानुक्रम (पदानुक्रम प्रणाली) मुख्य रूप से किसे संदर्भित करता है?

In administrative terminology, 'Hierarchy' refers to:

In a sound democratic administration, which two key principles must always go hand in hand?

Who stated, 'Coordination is the first principle of organization and includes within itself all other principles which are subordinate to it and through which it operates'?