S. M. Setyawati, P. Puwowidodo, M. M. Huda, and B. A. Dewi, “The Diversity of the Dragonfly of Orthetrum Genus in Protected Area of Mount Prau, Central Java Indonesia”, J. Nat. Scien. & Math. Res., vol. 3, no. 1, pp. 228–235, Jun. 2017.