na INLIS000000000002000 20220908080742 0010-0922000433 Proceesdings International Conference on Livestok Production and veterianary Technology : Assement of combination Treatment of Hormonal and Artifical Iseminetion and artifical Insemination of (AI) for Twining Calf Birth Dicky M.Dikman Mariyono 66-72 Jakarta : Indonesian Center for animal Reserch and Development Indonesian agency for Agricultural Reserch and Development minstry of agriculture republic of Indonesia IAARD Press, 2012 630 630 DIC p