Zakuan Azizi Shamsul Harumain, Mohd Azrul Naim Mohamad, Noor Faizul Hadry Nordin, and Mohd Yunus Abd Shukor, “Biodegradation of Petroleum Sludge by Methylobacterium sp. Strain ZASH”, tlsr, vol. 34, no. 2, pp. 197–222, Jul. 2023, doi: 10.21315/tlsr2023.34.2.10.