Luthfianda, T., Siswoyo, B. H., & Afriani, D. T. (2026). Effectiveness of Various Natural β-Carotene Sources in Feed on the Color Brightness of Goldfish (Carassius auratus). Bioscientist : Jurnal Ilmiah Biologi, 14(2), 726–736. https://doi.org/10.33394/bioscientist.v14i2.20079