Which of the following is not a primary data collection technique?

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E6 NursingResearch Sukhpal Kaur p. 274-276
E6 Comprehensive Textbook of Community Health Nursing for BSc Nursing Students Part 2 — Subpart B (pp 276-535 of 550) p. 19-21
Practise the full RUHS, Jaipur, M.Sc Nursing Entrance Exam-2023
Attempt every question from this paper in a timed mock, then review the full solution for each one.