Yadav, Dr. Satendra Kumar. “Using Bibliometric Analysis to Explore Research Trend of Euro-6 from 2010 to 2019”. International Journal of Advanced Science and Technology 29, no. 3 (January 31, 2020): 794 - 808. Accessed May 6, 2024. http://sersc.org/journals/index.php/IJAST/article/view/4142.