Mathematics · Statistics
निम्नलिखित में से किसे डेटा का द्वितीयक स्रोत (secondary source) नहीं माना जाता है?
- 1जीवनी (Biography)
- 2अनुसंधान पत्रिकाएँ (Research Journals)
- 3आत्मकथा (Autobiography)✓
- 4समाचार पत्र की रिपोर्ट
सही उत्तर देखें
आत्मकथा (Autobiography)
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