N. KHAN, A. SHAH, and K. NUSRATULLAH. “Identification of Valued Users to Generate More Telecom Diligence”. Sindh University Research Journal - SURJ (Science Series) 50, no. 3D (October 18, 2018). Accessed May 19, 2024. https://sujo.usindh.edu.pk/index.php/SURJ/article/view/1245.