Rifai, Achmad, 		Praptiwi, Anita, 		Sulistiyono, Dwi, AND 		Wulandari, Titis.
" TECHNIQUES OF PURIFICATION of ANTIGEN O ISOLATES of Escherichia coli AND IN VIVO ANALYSIS OF ANTIGEN IMMUNOGENICITY IN POULTRY" <em>BIOEDUKASI</em> [Online], Volume 21 Number 1 (25 February 2023)