Yohaness Beatrixs Yonkman Oybur, et al. “RANCANG BANGUN SISTEM INFORMASI NOTULENSI MENGGUNAKAN FRAMEWORK CODEIGNITER DAN DATABASE MYSQL DI UNIVERSITAS KATOLIK WIDYA KARYA MALANG ”. Journal of Information System and E-Business, vol. 1, no. 1, June 2023, pp. 49-56, https://ejournal.widyakarya.ac.id/index.php/jise/article/view/4.