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Noordwijk, Meine van and Utomo, Muhajir and Susilo, FX (2004) Conservation and sustainable management of below-ground biodiversity in Indonesia in the context of the global CSM-BGBD Project. In: Conservation and Sustainable management of below ground Biodiversity in Indonesia, Bogor.

Sarno, - and Iijima, Morio and Lumbanraja, Jamalam and Sunyoto, - and Yuliadi, Erwin and Izumi, Yasuhiro and Watanabe, Akira (2004) Soil chemical properties of an Indonesian red acid soil as affected by land use and crop management. Soil and Tillage Research, 76 (2). pp. 115-124. ISSN 0167-1987

Sarno, - and Lumbanraja, Jamalam and Afandi, . and Adachi, Tadashi and Oki, Yolo and Senge, Masateru and Watanabe, Akira (2004) Effect of weed management in coffee plantation on soil chemical properties. Nutrient Cycling in Agroecosystems, 69. pp. 1-4. ISSN 1385-1314

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