Kandungan merkuri dalam air, sedimen dan kerang: studi kasus perairan teluk Buyat dan Sekitarnya, Propinsi Sulawesi Utara = The content of mercury in water, sediment, and mollusk (A case study of Buyat Bay and surroundings, Province of North Sulawesi) - Pingkan Roeroe, author (Program Pascasarjana Universitas Indonesia, 2000)