Azizah, N. and Indahyanti, U. 2022. PRIVACY-PRESERVING REAL TIME TRACING SYSTEM FOR COVID-19 PATIENT USING GPS TECHNOLOGY. BAREKENG: Jurnal Ilmu Matematika dan Terapan. 16, 1 (Mar. 2022), 121-128. DOI:https://doi.org/10.30598/barekengvol16iss1pp121-128.