Barus, Riantri, Progam Studi Agribisnis, Fakultas Pertanian, Universitas Sumatera Utara, Indonesia

• Indonesian Journal of Agricultural Research Vol. 1 No. 3 (2018): InJAR, Vol. 1, No. 3, November 2018 - Articles
  Analysis of Smallholders’ Progress in Implementing Sustainable Management in North Sumatra, Indonesia
  Abstract  PDF