Newson Renady, Natanael Wongkar, Natasya Syelomita Halim, Yosafat Dame Parlindungan, Elvira Pebiana. Analisis Porter’s Five Force Pada Pusat Ponsel dan Laptop (PPL) di Kota Palangka Raya. EJ [Internet]. 2025 Jul. 19 [cited 2025 Aug. 17];6(2):152-9. Available from: https://e-journal.upr.ac.id/index.php/edu/article/view/22529