Kumar D, Anand T, Shah RA, Singh MK, Chauhan MS, Manik RS. Expression patterns of OCT-4 and NANOG genes in buffalo (Bubalus bubalis) embryos produced by in vitro fertilization or parthenogenetic activation. Indian J of Anim Sci. 2012;82(8):834–837. doi:10.56093/ijans.v82i8.23002