Chainarong Tocharus. (1992) The viability testing of frozen-thawed bovine embryo produced in vitro. Mahidol University,:ม.ป.ท.Chainarong Tocharus. 1992. The viability testing of frozen-thawed bovine embryo produced in vitro. ม.ป.ท.:Mahidol University,;Chainarong Tocharus. The viability testing of frozen-thawed bovine embryo produced in vitro. ม.ป.ท.:Mahidol University, 1992. Print.