Lumban-Gaol, Jonson, et al. “Participatory Mapping and Monitoring of Community Benzoin Gardens Management in the Paung Village, Pollung District”. Jurnal Rekayasa Teknik Sipil Dan Lingkungan - CENTECH, vol. 4, no. 1, May 2023, pp. 1-7, doi:10.33541/cen.v4i1.4803.