DOLORIEL, Nancy S. Optimizing Resource Use in Upland Rice Farming: A Cobb-Douglas ProductivityAnalysis in Caraga Region, Philippines. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), Bogor, ID, v. 16, n. 3, p. 301, 2026. DOI: 10.29244/jpsl.16.3.301. Disponível em: https://journal.ipb.ac.id/jpsl/article/view/66354. Acesso em: 23 may. 2026.