One of the principles of health education:-

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E6 Comprehensive Textbook of Community Health NursingShyamala D part 1 (pp 26-389 of 389) p. 260-262
E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart B (pp 233-449 of 464) p. 179-181
Practise the full AIIMS Manglagiri NO - 2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.