WIDJIATI., BOEDIONOA., SUMITROS. B., HINTINGA., AULANI’AM., & SUSILOWATIT. (2012). Isolation and Identification of Transforming Growth Factor β from In Vitro Matured Cumulus Oocyte Complexes. HAYATI Journal of Biosciences, 19(1), 6. https://doi.org/10.4308/hjb.19.1.6