Planter and peasant : colonial policy and the agrarian struggle in East Sumatra 1863-1947 / Karl J. Pelzer

Kajian spasial kesehatan tanaman karet dengan citra sentinel-2A di Pusat Penelitian Karet Sembawa, Banyuasin, Sumatera Selatan = A Spatial study of rubber plant health with sentinel-2A in Sembawa Rubber Research Center, Banyuasin, South Sumatra

Toean keboen dan petani : politik kolonial dan perjuangan agraria di Sumatra Timur 1863-1947

Welfare Capitalism?: Perkembangan Perusahaan Perkebunan Karet Amerika Serikat di Sumatra Timur (1920-1929) = Welfare Capitalism?: The Development of the United States Rubber Company in East Sumatra (1920-1929)

Analisis dampak kebijakan international tripartite rubber council (ITRC) dalam mempengaruhi harga melalui pengaturan produksi dan ekspor karet alam di tiga negara = Analysis of the impact of the international tripartite rubber council's (ITRC) policy in influencing prices through control of production and export of natural rubber in three countries / Trisna Ulfatmi