Andrias, Andrias, and Malabay Malabay. 2022. “Implementasi Aplikasi Web Sertifikat Vaksin Karyawan Berbasis Radio-Frequency Identification (Studi Kasus : PT Megatech Bio Energi)”. IKRA-ITH Informatika : Jurnal Komputer Dan Informatika 6 (3). https://doi.org/10.37817/ikraith-informatika.v6i3.2212.