Putra Uta, D.R., Mufida, D.C., Sutejo, I.R., Agustina, D., Suswati, E. and Shodikin, M.A. 2024. Increased levels of IL-4 in the Spleen of BALB/c Mice after 65.5 kDa Pili Protein Klebsiella pneumoniae Immunization. Medical Laboratory Technology Journal. 10, 1 (Jun. 2024), 55–62. DOI:https://doi.org/10.31964/mltj.v10i1.575.