Harapan, Try Surya, et al. “Above Ground Biomass Estimation of Syzygium Aromaticum Using Structure from Motion (SfM) Derived from Unmanned Aerial Vehicle in Paninggahan Agroforest Area, West Sumatra”. Jurnal Biologi UNAND, vol. 9, no. 1, July 2021, pp. 39-46, doi:10.25077/jbioua.9.1.39-46.2021.