Tesfay, Abadi, Emiru Birhane, Kiros Gebrehiwot, Girmay Tesfay, Negasi Solomon, Buruh Abebe, Tesfay Araya, Mebrahtu Brhan, and Meley Mekonen Rannestad. “Sustainability of Frankincense Production in Tigray, Ethiopia: An Emergy Synthesis”. Journal of Forest Business Research 2, no. 2 (November 13, 2023): 85–113. Accessed December 4, 2024. https://forest-journal.com/index.php/JFBR/article/view/frankincense-production-tigray-ethiopia.