Shah, Asad Naeem, G. E. Yun- shan, TAN Jian- wei, and Liu Zhi-hua. “An Experimental Investigation of PAH Emissions from a Heavy Duty Diesel Engine Fuelled With Biodiesel and Its Blend”. Biological Sciences - PJSIR 51, no. 6 (December 25, 2008): 293–300. Accessed May 20, 2024. http://v2.pjsir.org/index.php/biological-sciences/article/view/700.