“Vegetation Composition and Carbon Storage Potential at Tree and Pole Levels in the Gunung Leuser National Park Area, Bukit Lawang, Bahorok District, Langkat Regency, North Sumatra”, Int J Ecophysiol, vol. 7, no. 1, pp. 1–8, Mar. 2025, doi: 10.32734/ijoep.v7i1.17934.