Newson Renady (2025) “Analisis Porter’s Five Force Pada Pusat Ponsel dan Laptop (PPL) di Kota Palangka Raya”, Edunomics Journal, 6(2), pp. 152–159. Available at: https://e-journal.upr.ac.id/index.php/edu/article/view/22529 (Accessed: 21 December 2025).