Tarisa Wina Laksmana, Novita Sari, Sofiah. Strategi GraPARI Jember dalam Mengoptimalkan Penawaran Upgrade Layanan IndiHome. ISTIKHLAF [Internet]. 2026 May 31 [cited 2026 Nov. 5];8(1):146-61. Available from: https://ejurnal.iaiyasnibungo.ac.id/index.php/istikhlaf/article/view/1455