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Matsumoto, Sadayoshi and Yusnaini, Sri and Niswati, Ainin (2000) Relation to Soil Animal Populations and Plant Litter Decomposition in a Tropical Region. Edaphologia, 65. pp. 55-60. ISSN 0389-1445

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Salam, Abdul Kadir (2000) A Four Year Study on the Effects of Manipulated Soil pH and Organic Matter Contents on Availabilities of Industrial-Waste-Origin Heavy-Metals in Tropical Soils. Journal of Tropical Soils, 6 (1). pp. 31-46. ISSN 0852-257X

Salam, Abdul Kadir and Suyatno, Saja and Handoko, Saja and Wiharso, Didin and Harahap, J. Tagor (2000) Chemical Availabilities of Phosphorus, Manganese and Iron in Limin LC Treated Tropical Soils. Journal of Tropical Soils, 5 (1). pp. 137-145. ISSN 0852-257X