Arranging the working environment so as to increase the efficiency and well being of the employees follow the principle of?

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart B (pp 233-449 of 464) p. 120-122
Practise the full KPSC Staff Nurse - 2015
Attempt every question from this paper in a timed mock, then review the full solution for each one.