Aquino, Sarah, et al. “Quantification of Nitrous Oxide, Methane, and Carbon Dioxide Emissions from Agricultural Machineries in Cagayan Valley Rice Farming Systems: Array”. Linker (The Journal of Emerging Research in Agriculture, Fisheries and Forestry), vol. 5, no. 2, Dec. 2025, pp. 1-14, doi:10.65141/tjeraff.v5i2.272.