R. Arunachalam, G. Arul Oli, C. Lloyd Chrispin, and K. S. Vijay Amirtharaj, “Influence of Private Extension Services on Practices and Perceptions of Shrimp Farmers”, Indian J Ext Edu, vol. 61, no. 4, pp. 60–65, Sep. 2025, doi: 10.48165/IJEE.2025.61410.