Muthmainnah, M., M. Hatta, M. N. Massi, F. Hamid, I. Djaharuddin, E. W. Ferial, A. A. Zainuddin, and M. H. Sari. “DETECTION OF PNEUMOLYSIN (PLY) STREPTOCOCCUS PNEUMONIAE GENES IN ELDERLY BY CULTURE AND PCR”. JURNAL RISET KESEHATAN POLTEKKES DEPKES BANDUNG, vol. 12, no. 1, May 2020, pp. 122-6, doi:10.34011/juriskesbdg.v12i1.850.