Jurnal Internasional
- Techniques of Efficiency Measurement in Ecology Research of Forest Management Using Data Envelopment Analysis
- Planning for Sustainable Waste Management Model in Pematangsiantar City
- Planning Model of Population Education and Environment in State Elementary School on District of Simalungun Regency
- Planing of Sustainable City Model in Pematangsiantar
- Agriciltural Ecology of Irrigation Systems and Sustainable Development in Simalungun Region Indonesia
- Influence of Sipinsur Ecotourism Area Business Opportunity on Regional Development in Humbang Hasundutan Regency
- Extension Strategy of Forestry in Supporting The Success of Forest Area Forestry Development With The Special of Pondok Bulu Forest Management Area (KPH) II
- The
Role of Forestry Extension Agents in Community Empowerment Farmers
Group Pasar Village, Forest Management Unit IV Balige District Toba
Regency
- The
Effectiveness of Extension Methods for the Development of Self-reliance
of Agroforestry Farmer Groups in Acceleration Forestry Development
- Perencanaan Pola Kemitraan dalam Peningkatan Kesejahteraan Petani KPH XIII Kawasan Dolok Sanggul Kabupaten Humbang Hasundutan
- A Mixed Integer Programming Model for Forest Harvest Scheduling Problem
Terbitan Buku
- Perencanaan Pembangunan Kehutanan
- Manajemen Wilayah Hutan
- Pemberdayaan Masyarakat Desa Sekitar Kawasan Hutan
- Pengelolaan Kawasan Konservasi
Haki