Pengaruh Pengunjung terhadap Perilaku Gajah Sumatra (Elephas maximus sumatranus Temminck, 1847) di Kebun Binatang Gembira Loka, Yogyakarta = The Effect of Visitors on Sumatran Elephant Behaviour (Elephas maximus sumatranus Temminck, 1847) at Gembira Loka Zoo, Yogyakarta

Perilaku Sosial dan Reproduksi Anoa Dataran Rendah (Bubalus depressicornis Smith, 1827) Jantan di Taman Margasatwa Ragunan, Jakarta Selatan = Social and Reproductive Behavior of Male Lowland Anoa (Bubalus depressicornis Smith, 1827) in Taman Margasatwa Ragunan, South Jakarta

Perilaku Sosial Harimau Sumatra (Panthera tigris sumatrae, Pocock, 1929) pada Kandang Tidur di Taman Margasatwa Ragunan, Jakarta Selatan = Social Behaviour of Sumatran Tiger (Panthera tigris sumatrae, Pocock, 1929) in Sleeping Cage at Taman Margasatwa Ragunan, South Jakarta

Perilaku harian individu dan perilaku sosial populasi gajah sumatra (elephas maximus sumatranus) di Taman Margasatwa Ragunan, Jakarta = Daily behaviours of individuals and social behaviour of sumatran elephant population (elephas maximus sumatranus) at Taman Margasatwa Ragunan, Jakarta

Interaksi reproduksi Orangutan Sumatra Pongo abelii (Lesson, 1827) jantan terhadap betina dalam exhibit di Taman Safari Bogor, Jawa Barat = Reproductive Interactions of Male sumatran Orangutan, Pongo abelii (Lesson, 1827) on female at exhibit in Taman Safari Bogor, West Java