Ratnasari, Arum, Abdul Haris Mustari, and Burhanuddi Masyud. “Management Training of Sumatra Elephant (Elephas Maximus Sumatranus) and Daily Behavior in Flying Squad WWF Tesso Nilo National Park, Riau”. Media Konservasi 22, no. 2 (January 4, 2018): 181-187. Accessed November 29, 2020. http://journal.ipb.ac.id/index.php/konservasi/article/view/19357.