Pramita, Heny, Saugi Abduh Saugi Abduh, and Chodidjah Chodidjah. 2011. “The Difference in Effectiveness of 70% and 0.5% Chlorine to ReduceThe Germ Number on Stethoscope’s Membrane Experimental Research at Stethoscope in Baitul Izah Ward of Sultan Agung Islamic Hospital Semarang”. Sains Medika: Jurnal Kedokteran Dan Kesehatan 3 (1): 63-68. https://doi.org/10.30659/sainsmed.v3i1.410.