Ahmad, Riza Zainuddin, AND Gholib, Djaenudin. " Pemberian Duddingtonia flagrans dan Saccharomyces cerevisiae Meningkatkan Produksi Susu dan Menurunkan Populasi Cacing pada Sapi (THE TREATMENT OF DUDDINGTONIA FLAGRANS AND SACCHAROMYCES CEREVISIAE INCREASE MILK PRODUCTION AND DECREASE WORM POPULATION IN" Jurnal Veteriner [Online], Volume 15 Number 2 (14 August 2014)