1. Agricultural Economics S. Subba Reddy: https://amzn.to/4gqfQPz 

2. Introduction to Agricultural Social Science by Subhash Chandra: https://amzn.to/4gnjGJl 

3. Economics of Farm Production and Management by V T Raju: https://amzn.to/41MkbIj 

4. Extension communication and Management by G L Ray: https://amzn.to/3P8zqDW 

5. Instant Extension Education Shruti: https://amzn.to/3VOxELX 

6. Fundamentals of Agricultural Extension by Sunil. V. G: https://amzn.to/3VTdfFE 

7. Textbook on Agricultural Communication by A S Sandhu: https://amzn.to/4gqiMf4