Saleh, S., U. Hasanah, and E. Elijonnahdi. “Effectiveness of Dung Beetles As Bioindicators of Environmental Changes in Land-Use Gradient in Sulawesi, Indonesia”. BIOTROPIA - The Southeast Asian Journal of Tropical Biology, vol. 21, no. 1, Aug. 2014, pp. 48-58, doi:10.11598/btb.2014.21.1.309.