na INLIS000000000002391 20221207114740 0010-1222000076 ta 221207 | | | 633.91 633.91 BAL p Pengendali Kering Alur Sadap NoBB / Balai Penelitian Sungei Putih Medan : Balai Penelitian Sungei Putih, [s.a] 5 p : ill ; 21 cm Balai Penelitian Sungei Putih Karet Leaflet [s.a].30