Pranata B, Tambunan D, Sibarani HJ, Pasaribu D. Analysis of the Impact of Network Quality, Brand Image, and Promotion on Telkomsel Package Card Purchase Decisions (Case Study on Students of SMK Brigadier General Katamso II Medan). SN-IMEKB [Internet]. 2024 Aug. 9 [cited 2025 Jan. 22];3(1):119-34. Available from: https://journal.formosapublisher.org/index.php/snimekb/article/view/10826