Hatulesila, Jan, et al. “Identifying the Strata of Sago Stands Using Unmanned Aerial Vehicle Data (Case Study: Ambon Island, Maluku, Indonesia)”. Jurnal Pengelolaan Sumberdaya Alam Dan Lingkungan (Journal of Natural Resources and Environmental Management), vol. 14, no. 2, June 2024, p. 354, https://doi.org/10.29244/jpsl.14.2.354.