Yamin, M. et al. 2022. Breeding of Philemon buceroides by Synchronization of Pregnant Mare Serum Gonadotropine (PMSG) Reproductive Hormone and Estrogen as Conservation for Preventing Its Extinction. Jurnal Penelitian Pendidikan IPA. 8, 2 (Apr. 2022), 957–962. DOI:https://doi.org/10.29303/jppipa.v8i2.1482.