R. K. Tohir, “Feed Diversity, Palatabiliti and Carrying Capacity of Sumatran Elephant (Elephas maximus sumatranus) Flying Squad in Tesso Nilo National Park”., JPSL, vol. 8, no. 3, pp. 339–346, Dec. 2018, doi: 10.29244/jpsl.8.3.339-346.