Herdika, Yusri, et al. “Analysis of Risk Factors and The Impact of Nitric Oxide (NO) and Carbon Monoxide (CO) Levels on Lung Function: A Comparative Study of Palm Oil Factory Workers and the Community in Kuantan Mudik District, Riau, Indonesia”. Bioscientia Medicina : Journal of Biomedicine and Translational Research, vol. 8, no. 10, July 2024, pp. 5185-93, https://doi.org/10.37275/bsm.v8i10.1101.