H, I. M., Amirisianti, N. Kumailiyah, S. L. Maulany, and S. N. H. N. “Inventory of Bird Species in Kedung Kopong and Banyak Angkrem, Kec. Salaman, Kab. Magelang”. Proceeding International Conference on Science and Engineering, vol. 4, Feb. 2021, pp. 125-8, https://sunankalijaga.org/prosiding/index.php/icse/article/view/642.