Ridlo, Muhammad, Widyastuti, Rini, Lubis, Alkaustariyah, Fahrudin, Mokhamad, AND Boediono, Arief. " Mice Oocytes Respond after Vitrification Followed by Artifical Activation Using a Various Concentration of Strontium Chloride and Cytochalasin B" Jurnal Veteriner [Online], Volume 19 Number 3 (30 November 2018)