Library Science · Information Sources
'विस्तार कार्यकर्ता' (Extension workers) किस प्रकार के सूचना स्रोत के रूप में कार्य करते हैं?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1तृतीयक स्रोत (Tertiary sources)
- 2द्वितीयक स्रोत (Secondary sources)
- 3गैर-प्रलेखी स्रोत (Non-documentary sources)✓
- 4प्रलेखी स्रोत (Documentary sources)
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गैर-प्रलेखी स्रोत (Non-documentary sources)
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