GeorgeN., KillurR. R. B. and CornelioD. L. (2013) “Land Use Conversion and Soil Properties in a Lowland Tropical Landscape of Papua New Guinea”, Jurnal Manajemen Hutan Tropika. Bogor, INA, 19(1), pp. 39-45. doi: 10.7226/jtfm.19.1.39-45.