Wardhani, Rika, Meinarini Utami, and Ibnu Saputra. 2020. “SISTEM INFORMASI HELPDESK TICKETING PADA PT. BANK MEGA Tbk”. Jurnal Ilmiah Matrik 22 (2):201-7. https://doi.org/10.33557/jurnalmatrik.v22i2.868.