Siti Amilia Marpaung, Indah Respati Kusumasari. Pricing Strategy and Quality Perception in Maintaining Customer Loyalty: Evidence from Telkomsel Surabaya. JCBD [Internet]. 2026 May 31 [cited 2026 Sep. 25];5(2):142-7. Available from: https://jurnal.delitekno.co.id/index.php/jcbd/article/view/1004