Pola konektivitas sistem sosial ekologi dalam pengelolaan ekosislem lamun (Kajian efektivitas pengelolaan kawasan konservasi padang lamun di Desa Malan& Rapat dan Desa Teluk Bakau, Kabupaten Bintan)= the connectivity of social-ecological system on seagrass management (study of management effectiveness of seagrass conservation area in Malang Rapat Village and Teluk Bukan Village, Regency of Bintan)

Peranan pimpinan desa dalam pelestarian fungsi kewang : Studi tentang pranata sosial dalam pengelolaan sumberdaya alam dan lingkungan di Pulau Saparua Kabupaten Maluku Tengah, Propinsi Maluku = The role of village headman and the kewang environment preservation: study on social institutions on environment and natural resources management in the Island of Saparua, Kabupaten of Central Molucca, Molucca Province

Paper heroes: a review of appropriate technology

Ecological principles for economic development

Economy and ecology in sustainable development / editor, SPES