All of the following are true for class system, except :

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E6 Applied Sociology for Nurses TK Indrani p. 181-183
E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 225-227
Practise the full IGNOU PB Bsc Entrance-2022
Attempt every question from this paper in a timed mock, then review the full solution for each one.