Purwadi H. Optimasi Tingkat Layanan Call Center Jasa Teleponi Dasar: Kajian Regulasi. InComTech [Internet]. 2019 Dec. 21 [cited 2026 Jun. 3];9(3):151-63. Available from: https://publikasi.mercubuana.ac.id/index.php/Incomtech/article/view/7049