15 1 40 Sumardi Additional Author S.M. Widyatuti Additional Author mixed material Jakarta Depdiknas 2002 pengantar_perlindungan_hutan.jpg.jpg Sjamsoe\'oed Sadjad Additional Author mixed material Jakarta PN.Balai Pustaka 1983 Empat_Belas_Tanaman_Perkebunan_untuk_Agro-Industri_.jpg.jpg Greeley, William B. Primary Author mixed material New York The McGraw-Hill Book Company, Inc. 1953 forest_policy.jpg.jpg Allen, Walter Sheirley Primary Author Sharpe, Grant William Primary Author mixed material Hoboken, NJ Mc Graw-Hill Book Company 1960 An_Introduction_To_American_Forestry.jpg.jpg 6 artikel Irnayuli R. Sitepu Additional Author mixed material 02160919 Jakarta Ministry of Forestry 2009 6 artikel Irnayuli R. Sitepu Additional Author mixed material 02160919 Jakarta Ministry of Forestry 2009 International Labour Office Primary Author mixed material Lausanne Presses Centrales 1969 Safety_and_Health_in_Forestry_Work.jpg Hardy L.Shirley Additional Author mixed material New York Mc Graw-Hill Book Company 1952 IMG_0083.jpg Walter H.Meyer Additional Author CHAPMAN, Herman H Primary Author mixed material IMG_0082.jpg William A Duerr Additional Author mixed material New York Mc Graw-Hill Book Company IMG_0074.jpg Charles H.Stoddard Additional Author mixed material Naw York John Willey and Sons 1978 IMG_0061.jpg Forest fire behavior and effects Craig Chandler Additional Author Phillip Cheney Additional Author Philip Thomas Additional Author mixed material New York John Willey and Sons 1983 IMG_0056.jpg DANIEL, Theodore W Primary Author mixed material 0070152977 New York Mc Graw-Hill Book Company 1979 International Labour Office Additional Author mixed material Genewa International labour office 1968 edited by J.M. Bonga and Don J. Durzan Additional Author mixed material Dordrecht, The Netherlands Martinus Nijhoff 1987