PENGARUH PENGGUNAAN HEMIKALSIUM DALAM MEDIUM FERTILISASI IN VITRO TERHADAP VIABILITAS DAN AGLUTINASI SPERMATOZOA SAPI [The Usage effect of Hemicalcium in a Medium of In Vitro Fertilization on Viability and Agglutination of Cattle Sperm] - Udin, Z (Faculty of Animal Agriculture, Diponegoro University, 2006)