Shamsuddin AS, Syed ismail sharifah N, Mohd. Sham S, Zainal Abidin E. Nitrate in Groundwater and Excretion of Nitrate and Nitrosamines in Urine: A Review. IJSBAR. 2014;15(2):176-191. Accessed April 1, 2026. https://gssrr.org/JournalOfBasicAndApplied/article/view/2946