The Differences of Ultrasonography Imaging Between Green Turtles (Chelonia mydas) and Olive Ridley Turtles (Lepidochelys olivacea) in Bali (PERBEDAAN CITRA ULTRASONOGRAFI ANTARA PENYU HIJAU (CHELONIA MYDAS) DAN PENYU LEKANG (LEPIDOCHELYS OLIVACEA) DI BALI - Gunawan, I Wayan Nico Fajar (Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association, 2020)