ဤအရာ Book သင်၏ဘာသာစကားတွင်မရှိပါ။, တွင်..ကြည့်ပါ။: English (en),
သို့မဟုတ် ဂူဂယ်ဘာသာပြန်ကိုအသုံးပြုပါ။:  

This book may no longer be available in print.

The lectures reproduced in this book were delivered as part of an introductory course in agricultural extension at the University of Sri Lanka in 1974.

114 pages 

Publication Details

  • Published: 1978
  • Publisher: Agricultural Development Council,
  • Dewey Decimal: 630.715
  • ECHO Library: 630.715 MOS

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Sri Lanka Agricultural Exten...