Rifin, Amzul, IPB University, Indonesia

• Vol 6, No 1 (2023) - Articles
  Optimizing the Integrated Farming System of Coffee and Goat to Maximize Farmers' Income in North Sumatra, Indonesia
  Abstract  PDF
• Vol 8, No 2 (2025) - Articles
  The Effect of Urea and NPK Fertilizer Usage on Farmers Receiving Fertilizer Subsidies
  Abstract  PDF
• Vol 7, No 2 (2024) - Articles
  Technical Efficiency of Smallholder Oil Palm Farms in Batanghari District Jambi Province, Indonesia
  Abstract  PDF
• Vol 8, No 3 (2025) - Articles
  Competitiveness of Indonesian Essential Oil Exports in the Chinese Market and Rival Countries
  Abstract  PDF