Arlina F, Rusfidra R, Munafri S, Tanjung WF, Ardiansyah T, Rafian T. Activity and crowing frequency of Ayam Kokok Balenggek from West Sumatra by using and without perch. JAVR [Internet]. 2025Nov.29 [cited 2026Apr.6];15(6):767-70. Available from: https://www.advetresearch.com/index.php/AVR/article/view/2378