Kusumaningrum , Hermin Pancasakti, et al. “Phylogenetic Analysis of Duck Species from Tegal Indonesia Using 18S Ribosomal RNA and Mitochondrial COI Gene”. International Journal of Poultry Science, vol. 17, no. 8, July 2018, pp. 392–404, https://doi.org/10.3923/ijps.2018.392.404.