“Genotoxicity Assessment of Water Samples from the Sungai Dua River in Pulau Pinang, Malaysia, Using the Allium Cepa Test”. Tropical Life Sciences Research 22, no. 2 (December 31, 2011): 23–35. Accessed May 19, 2024. https://ejournal.usm.my/tlsr/article/view/tlsr_vol22-no-2-2011_3.