Doloriel, N. S. (2026). 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), 16(3), 301. https://doi.org/10.29244/jpsl.16.3.301