Tongnunui, S.; Wattanakornsiri, A.; Pachana, K.; Beamish, F. W.; Tongsukdee, S. Preliminary Investigation of Irrawaddy Dolphin (Orcaella Brevirostris) in the Bangpakong Estuary, Inner Gulf of Thailand. Environ. Nat. Resour. J. 2017, 9, 48-57.