Rusfidra, Tumatra Y, Abbas M, Heryandi Y, Arlina F. Characterization of Number of Crow and Qualitative Marker of Kokok Balenggek Song Fowl Inside a Captive Breeding Farm in Solok Regency, West Sumatera Province, Indonesia. Int. J. Poult. Sci. 2014;13(6):343–346. doi:10.3923/ijps.2014.343.346