LestariD., Masruroh, KhaerunnisaI., MurtiniS., UlupiN., GunawanA., and SumantriC. “Variation and Association of Avian β-Defensin 2 Gene With the Concentration of Immunoglobulin Y and the Titer of Newcastle-Disease Antibody in IPB-D1 Chicken”. Tropical Animal Science Journal, Vol. 45, no. 2, May 2022, pp. 121-7, doi:10.5398/tasj.2022.45.2.121.