https://spada.ristekdikti.go.id/download_pdf/PANDUAN%20SISTEM-edit.pdf
https://www.facebook.com/ahyar.ansori.58/videos/521469148778848/?t=242
https://lms.ugr.ac.id/pluginfile.php/7989/coursecat/description/EBOOK-Tutorial-E-Learning-Dosen%20UGR-1.pdf
