YulianE.N., SyaufinaL. and PutriE.I.K. 2011. VALUASI EKONOMI SUMBERDAYA ALAM TAMAN HUTAN RAYA BUKIT SOEHARTO DI PROVINSI KALIMANTAN TIMUR. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management). 1, 1 (Jul. 2011), 38. DOI:https://doi.org/10.29244/jpsl.1.1.38.