ANALISIS DAN PERANCANGAN SISTEM TICKETING MANAGEMENT SERVICE OPERATION PADA PT TELKOM INDONESIA MENGGUNAKAN METODE WEIGHTED PRODUCT. oai [Internet]. 2020 Sep. 26 [cited 2026 Oct. 18];8(02):81-90. Available from: https://ejournal.upbatam.ac.id/index.php/jif/article/view/1863