The Phenomenon of Medical Waste Recycling in Indonesia: Contact Time and Chlorine Dose as a Disinfectant with The Bio-Indicator Bacillus subtilis and Bacillus stearothermophilus oleh Elanda Fikri, Iis Kurniati, Wartiniyati Wartiniyati, Teguh Budi Prijanto, Pujiono Pujiono, Osman Syarief, Amar Sharaf Eldin Khair