Kumar, K. Pradeep, and Dr. Sri. K. Hemachandra Reddy. “EXPERIMENTAL INVESTIGATIONS ON CI ENGINE WITH VARYING AIR GAP AND YTTRIUM OXIDE AS HEAT RESISTING MATERIAL”. International Journal of Technical Innovation in Modern Engineering & Science 4, no. 8 (August 22, 2018): 382–389. Accessed March 12, 2025. https://ijtimes.com/index.php/ijtimes/article/view/769.