Suwanprasit, C., and J. Strobl. “Aboveground Biomass Estimation in an Upland Tropical Evergreen Forest Environment from Landsat 7 ETM+”. International Journal of Geoinformatics, vol. 16, no. 4, Dec. 2020, pp. 39-50, https://journals.sfu.ca/ijg/index.php/journal/article/view/1795.