Harianja, Alfonsus H, Indonesia

• Vol 15, No 2 (2018): Jurnal Penelitian Sosial dan Ekonomi Kehutanan - Artikel
  THE EFFECT OF DEMONSTRATION SITE STATION ON DECREASING OF HOUSEHOLD’S WASTEWATER CONCENTRATION AROUND CILIWUNG RIVER
  Abstract  PDF
• Vol 15, No 2 (2018): Jurnal Penelitian Sosial dan Ekonomi Kehutanan - Thesis
  PEOPLE’S PREFERENCE IN MANAGING SAGO IN ASAHAN DISTRICT, AND ITS INFLUENCING FACTORS
  Abstract  PDF
• Vol 8, No 1 (2021): Indonesian Journal of Forestry Research - Articles
  THE IMPORTANCE OF THE UTILIZATION OF FOREST FRUITS IN BATAK TOBA COMMUNITY
  Abstract  PDF