SitungkirA.M. 2016. EVALUATION AND IMPROVEMENT OF DRAINAGE PERFORMANCE IN GEDONGTATAAN, LAMPUNG USING DUFLOW MODELING STUDIO. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management). 6, 2 (Dec. 2016), 111. DOI:https://doi.org/10.29244/jpsl.6.2.111.