relation: https://eprints.untirta.ac.id/24011/ title: HKI Covid creator: Dewi, Ratna Sari subject: L Education (General) description: - date: 2021-11-05 type: Patent type: NonPeerReviewed format: text language: en identifier: https://eprints.untirta.ac.id/24011/1/sertifikat_EC00202161759%20%282%29.pdf identifier: Ratna Sari Dewi (2021) HKI Covid. 000284872. relation: https://drive.google.com/file/d/1AaXFC1EVpY5nrIGTOFsX9eLAwq8Ozfoc/view?usp=sharing relation: 000284872