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Lembaga Geologi Dan Pertambangan Nasional | 論文
- FORMATION OF Ca/Mg-HUMATES IN TROPORTHENTS, KRAKATAU ISLANDS, INDONESIA
- FOREST VEGETATION AND THE NUTRITIONAL STATUS OF SOILS ON THE KRAKATAU ISLANDS, INDONESIA
- The Soils on the Krakatau Islands : IV.Accumulation and Composition of Humus
- The Soils on the Krakatau Islands : III.Mineralogy of the Soils
- The Soils on the Krakarau Islands : II.Particle Size Distribution and Chemical Properties of Soils
- The Soils on the Krakatau Islands : I.Field Observation