Widianawati, E.; Agiwahyuanto, F.; Trianni, T.; Sabrina, A. A.; Febian, D. A. COMPARISON OF THE EFFECTIVENESS ONLINE AND OFFLINE REGISTRATION SYSTEM ON PATIENT WAITING TIME IN PRIMARY HEALTH CARE SEMARANG USING QUEUING THEORY. J. Ris. Inform. 2021, 3, 181-186.