ParlinahN., NugrohoB., SalehM. B., and HendrayantoH. “Possibility of Harnessing Social Capital to Support the Development of Payment for Environmental Services in Small-Scale Forests: A Case of Jatigede Catchment Area”. Jurnal Manajemen Hutan Tropika, Vol. 24, no. 2, Aug. 2018, p. 70, https://journal.ipb.ac.id/index.php/jmht/article/view/17474.