Arya Raditya Prawira Putra, Dendi, Yudha Purwanto, and Marisa Paryasto. 2022. “The IMPLEMENTATION OF BLOCKCHAIN AS COVID-19 TEST AND VACCINE CERTIFICATE STORAGE SYSTEM”. [CEPAT] Journal of Computer Engineering: Progress, Application and Technology 1 (02):7-15. https://doi.org/10.25124/cepat.v1i02.5189.