Absorpsi logam berat merkuri pada ekosistem mangrove: studi kasus ekosistem mangrove di Desa Ratatotok Timur, Kecamatan Ratatotok Kabupaten Minahasa Selatan Provinsi Sulawesi Utara = Mercury absorption in mangrove village, Sub Regency Ratatotok, South Minahasa Regency, North Sulawesi Province - Joice Evelyn Ariesabeth, author (Program Pascasarjana Universitas Indonesia, 2005)