Peng, E. K., et al. “Greenhouse Gas (GHG) Emission Estimation from Cropland Remaining Cropland in AFOLU Sector for Various Districts in Sarawak”. International Journal of Engineering & Technology, vol. 7, no. 4.35, Nov. 2018, pp. 73-76, https://doi.org/10.14419/ijet.v7i4.35.22327.