R.P. Dwivedi and P.N. Kaul. “Productivity of Animal Scientists As Related to Considerations Underlying the Selection of Research Problems”. Indian Journal of Extension Education 32, no. 1-4 (October 30, 2024): 98–100. Accessed October 26, 2025. http://epubs.icar.org.in/index.php/IJEE/article/view/159203.