PRELIMINARY RESEARCH: IDENTIFICATION OF MICROORGANISM IN THE WAITING ROOM ON PUBLIC TRANSPORTATION FACILITIES, DKI JAKARTA SM El Jannah, C Rahayu, Z Zuraida, R Prasetio, RI Sugiarto SANITAS: JURNAL TEKNOLOGI DAN SENI KESEHATAN 9 (2), 56-63, 2018 | 2 | 2018 |