Mekonnen, Z. (2013) “Economic Contribution of Gum and Resin Resources to Household Livelihoods in Selected Regions and the National Economy of Ethiopia”, Ethnobotany Research and Applications, 11, pp. 273–288. Available at: https://ethnobotanyjournal.org/index.php/era/article/view/847 (Accessed: 4 September 2026).