Kawengian, Gioffani, Johny A. F. Kalangi, and Olivia F. C. Walangitan. “Pengaruh Harga Terhadap Keputusan Pembelian Smartfren Di IT Center Manado”. Productivity 2, no. 5 (September 16, 2021): 365–369. Accessed April 28, 2024. https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/35852.