References

INSTRUCTIONAL TECHNOLOGY 3(2+1)
Lesson 24 : Visual Aids - Charts

References

  1. Adivi Reddy.A, Extension Education, Seventh Edition, Sri Lakshmi press, Bapatla
  2. Ray GL(1996) Extension Communication and Management, Naya Prakash Publications, Calcutta
  3. Yella Reddy N Audio-Visual aids. EEI Publications, Rajendranagar, Hyderabad
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