“Parental Care Behavior Of Sumatran Elephants (Elephas maximus sumatranus) During Nocturnal Activities In Gunung Leuser National Park, Tangkahan Resort, Langkat, North Sumatra, Indonesia”, Int J Ecophysiol, vol. 6, no. 2, pp. 102–110, Sep. 2024, doi: 10.32734/ijoep.v6i2.17753.