1. I. Inounu, Subandriyo, B. Tiesnamurti, N. Hidajati and L. O. Nafiu, Indonesian Soc. Animal Sci. 10, 17–26 (2005).
2. Riwantoro, “Konservasi Plasma Nutfah Domba Garut dan Strategi Pengembangannya Secara Berkelanjutan”, M.Sc thesis, IPB University, Bogor, Indonesia, 2005.
3. M. Gunawan, M. Fahrudin and A. Boediono, J. Ked. Hewan 8, 154–157 (2014).
4. Cryopreservation and its clinical applications
5. I. R. Gordon, “Laboratory Production of Cattle Embryos, 2nd Edition” in Biotechnology in Agriculture Series, No. 27 (CABI Publishing, UK, 2003).