Ekologi populasi dan siklus reproduksi kerang kopah gafrarium tumidum roding, 1798 di daerah perairan pantai teluk kabung, Padang Sumatera Barat = The population ecology and reproductive cycle of gafrarium tumidum roding, 1798 in the coastal waters of south kabung bay, West Sumatra - Jabang Nurdin, author (Universitas Indonesia, 2009)