Purwaningtias, Fitri, and Usman Ependi. “Pengujian Usability Website Pondok Pesantren Qodratullah Menggunakan System Usability Scale”. Jurnal Sains Dan Informatika, vol. 6, no. 1, June 2020, pp. 34-43, doi:10.34128/jsi.v6i1.220.