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Jeli Nata Liyas. The Effect Of Promotion On Sales Of Oreo Products At PT. Mondelez Indonesia Pekanbaru. PPIMAN [Internet]. 2024 Jul. 30 [cited 2025 Apr. 4];2(3):270-85. Available from: https://ejournal-nipamof.id/index.php/PPIMAN/article/view/488