N. Nagaraj and H.N. Byra Reddy. “Relative Effectiveness or Le.Cture, Tape- Recorded Lecture and Their Combinations With Selected Visuals”. Indian Journal of Extension Education 21, no. 3-4 (November 26, 2024): 43–52. Accessed October 29, 2025. https://epubs.icar.org.in/index.php/IJEE/article/view/161064.