Utami, Istiqomah Indah, and Nur Ducha. “Addition of Avocado Peel Extract (Persea Americana) in CEP Diluent on Spermatozoa Quality of Simmental Bull at 4-5°C”. LenteraBio : Berkala Ilmiah Biologi , vol. 12, no. 3, Aug. 2023, pp. 412-2, doi:10.26740/lenterabio.v12n3.p412-422.