na INLIS000000000001347 20200129165112.0 200129| ||| | ind a 0010-012000000001347 Perkebunan Karet Berkelanjutan Damanik Sabarman Sabarman DamanikSiswanto Dedi Saleh Effendi Jakarta IAARD Press 2014 VII, 80p. 21cm ISBN :978-602-1520-60-4 633-912 633-912 KARET. 2765/D/2010