Basic Principle of HWC is?

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E6 Comprehensive Textbook of Community Health NursingShyamala D part 1 (pp 26-389 of 389) pp. 93-95, 94-96
E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 122-124
Practise the full Hariyana-CHO-2021
Attempt every question from this paper in a timed mock, then review the full solution for each one.