"Effects of Different Levels of Soybean Bioactive Peptides and Vitamin E on Performance, Egg Quality, and Serum Metabolites of Laying Hens". المجلة الدولية للبحوث العلمية, م 2, عدد 12, ديسمبر، 2023, https://doi.org/10.59992/IJSR.2023.v2n12p10.