NATIONAL LAND AGENCY, REPUBLIC OF INDONESIA (BPN RI) INDONESIAN AGENCY FOR AGRICULTURAL RESEARCH AND DEVELOPMENT (IAARD) BOGOR AGRICULTURAL UNIVERSITY (IPB) INTERNATIONAL UNION OF SOIL SCIENCES (IUSS) FOOD AND AGRICULTURAL ORGANIZATION (FAO)
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NATIONAL LAND AGENCY, REPUBLIC OF INDONESIA (BPN RI) INDONESIAN AGENCY FOR AGRICULTURAL RESEARCH AND DEVELOPMENT (IAARD) BOGOR AGRICULTURAL UNIVERSITY (IPB) INTERNATIONAL UNION OF SOIL SCIENCES (IUSS) FOOD AND AGRICULTURAL ORGANIZATION (FAO)