Hutajulu, Petrus Oktavianus, Faculty of Agriculture, Universitas Sumatera Utara, Indonesia, Indonesia

• Indonesian Journal of Agricultural Research Vol. 2 No. 2 (2019): InJAR, Vol. 2, No. 2, July 2019 - Articles
  Efficiency and Marketing Margins Estimation of Oil Palm’s Fresh Fruit Bunches (FFB) in Labuhanbatu Utara and Asahan Regency
  Abstract  PDF