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“PENGARUH KOMPETITOR, VARIAN PRODUK DAN PROMOSI DAGANG TERHADAP VOLUME PENJUALAN ES KRIM WALL’S PADA TOKO PENGECER DI KECAMATAN SUKARAMI PALEMBANG”, JSA, vol. 1, no. 1, pp. 907–922, Aug. 2026, Accessed: Aug. 21, 2026. [Online]. Available: https://journal-edu.org/index.php/jsa/article/view/410