Kristiyanto, Daniel, Ade Iriani, and Sri Prasetyo. “VISUALISASI DAN INTEPRETASI DATABASE ENGINE WEBSITE PENILAI KINERJA KARYAWAN BERBASIS ONLINE TRANSACTION PROCESSING (OLTP)”. SINTAK 2 (November 14, 2018). Accessed May 23, 2019. https://unisbank.ac.id/ojs/index.php/sintak/article/view/6638.