Putra, C. A., D. Hikmatullah, D. M. Prawiradilaga, and J. B. C. Harris. “Surveys at Bagan Percut, Sumatra, Reveal Its International Importance to Migratory Shorebirds and Breeding Herons”. KUKILA, Vol. 18, no. 2, Nov. 2015, pp. 46-59, https://kukila.org/index.php/KKL/article/view/473.